Home / 252,579,495.12-378,882,608.76-80,069,766

Finding the Fourth Proportional to 252,579,495.12, 378,882,608.76 and 80,069,766

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Solution

The fourth proportional to 252,579,495.12, 378,882,608.76 and 80,069,766 is: 120,108,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,579,495.12 : 378,882,608.76 = 80,069,766 : x
  2. Step 2: Convert to fraction form
    252,579,495.12/378,882,608.76 = 80,069,766/x
  3. Step 3: Cross multiply
    252,579,495.12x = 378,882,608.76 × 80,069,766
  4. Step 4: Simplify right side
    252,579,495.12x = 30,337,041,824,882,748
  5. Step 5: Solve for x
    x = 30,337,041,824,882,748/252,579,495.12
  6. Step 6: Final answer
    x = 120,108,886.16

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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.