Home / 1,121,931,440.40-1,682,897,160.60-1,098,973,189.20

Finding the Fourth Proportional to 1,121,931,440.40, 1,682,897,160.60 and 1,098,973,189.20

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Solution

The fourth proportional to 1,121,931,440.40, 1,682,897,160.60 and 1,098,973,189.20 is: 1,648,459,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,931,440.40 : 1,682,897,160.60 = 1,098,973,189.20 : x
  2. Step 2: Convert to fraction form
    1,121,931,440.40/1,682,897,160.60 = 1,098,973,189.20/x
  3. Step 3: Cross multiply
    1,121,931,440.40x = 1,682,897,160.60 × 1,098,973,189.20
  4. Step 4: Simplify right side
    1,121,931,440.40x = 1,849,458,859,680,206,592
  5. Step 5: Solve for x
    x = 1,849,458,859,680,206,592/1,121,931,440.40
  6. Step 6: Final answer
    x = 1,648,459,783.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.