Home / 827,592,599.52-1,239,984,115.20-499,378,487.04

Finding the Fourth Proportional to 827,592,599.52, 1,239,984,115.20 and 499,378,487.04

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Solution

The fourth proportional to 827,592,599.52, 1,239,984,115.20 and 499,378,487.04 is: 748,220,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,592,599.52 : 1,239,984,115.20 = 499,378,487.04 : x
  2. Step 2: Convert to fraction form
    827,592,599.52/1,239,984,115.20 = 499,378,487.04/x
  3. Step 3: Cross multiply
    827,592,599.52x = 1,239,984,115.20 × 499,378,487.04
  4. Step 4: Simplify right side
    827,592,599.52x = 619,221,391,402,209,152
  5. Step 5: Solve for x
    x = 619,221,391,402,209,152/827,592,599.52
  6. Step 6: Final answer
    x = 748,220,068.38

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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.