Home / 1,248,059,126.40-1,872,088,689.60-939,681,628.80

Finding the Fourth Proportional to 1,248,059,126.40, 1,872,088,689.60 and 939,681,628.80

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Solution

The fourth proportional to 1,248,059,126.40, 1,872,088,689.60 and 939,681,628.80 is: 1,409,522,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,059,126.40 : 1,872,088,689.60 = 939,681,628.80 : x
  2. Step 2: Convert to fraction form
    1,248,059,126.40/1,872,088,689.60 = 939,681,628.80/x
  3. Step 3: Cross multiply
    1,248,059,126.40x = 1,872,088,689.60 × 939,681,628.80
  4. Step 4: Simplify right side
    1,248,059,126.40x = 1,759,167,349,101,385,472
  5. Step 5: Solve for x
    x = 1,759,167,349,101,385,472/1,248,059,126.40
  6. Step 6: Final answer
    x = 1,409,522,443.20

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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.