Home / 579,313,624.20-868,970,436.30-515,824,139.40

Finding the Fourth Proportional to 579,313,624.20, 868,970,436.30 and 515,824,139.40

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Solution

The fourth proportional to 579,313,624.20, 868,970,436.30 and 515,824,139.40 is: 773,736,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,313,624.20 : 868,970,436.30 = 515,824,139.40 : x
  2. Step 2: Convert to fraction form
    579,313,624.20/868,970,436.30 = 515,824,139.40/x
  3. Step 3: Cross multiply
    579,313,624.20x = 868,970,436.30 × 515,824,139.40
  4. Step 4: Simplify right side
    579,313,624.20x = 448,235,927,468,489,984
  5. Step 5: Solve for x
    x = 448,235,927,468,489,984/579,313,624.20
  6. Step 6: Final answer
    x = 773,736,209.10

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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.