Home / 402,408,191.60-603,612,287.40-292,718,769.20

Finding the Fourth Proportional to 402,408,191.60, 603,612,287.40 and 292,718,769.20

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Solution

The fourth proportional to 402,408,191.60, 603,612,287.40 and 292,718,769.20 is: 439,078,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,191.60 : 603,612,287.40 = 292,718,769.20 : x
  2. Step 2: Convert to fraction form
    402,408,191.60/603,612,287.40 = 292,718,769.20/x
  3. Step 3: Cross multiply
    402,408,191.60x = 603,612,287.40 × 292,718,769.20
  4. Step 4: Simplify right side
    402,408,191.60x = 176,688,645,841,724,640
  5. Step 5: Solve for x
    x = 176,688,645,841,724,640/402,408,191.60
  6. Step 6: Final answer
    x = 439,078,153.80

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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.