Home / 1,092,100,748.30-1,638,151,122.45-402,502,906.70

Finding the Fourth Proportional to 1,092,100,748.30, 1,638,151,122.45 and 402,502,906.70

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Solution

The fourth proportional to 1,092,100,748.30, 1,638,151,122.45 and 402,502,906.70 is: 603,754,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,100,748.30 : 1,638,151,122.45 = 402,502,906.70 : x
  2. Step 2: Convert to fraction form
    1,092,100,748.30/1,638,151,122.45 = 402,502,906.70/x
  3. Step 3: Cross multiply
    1,092,100,748.30x = 1,638,151,122.45 × 402,502,906.70
  4. Step 4: Simplify right side
    1,092,100,748.30x = 659,360,588,399,992,576
  5. Step 5: Solve for x
    x = 659,360,588,399,992,576/1,092,100,748.30
  6. Step 6: Final answer
    x = 603,754,360.05

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Double scale
Find fourth proportional to 1,092,100,749.30, 1,638,151,123.95 and 402,502,907.70
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.