Home / 372,359,390.92-513,855,935.11-215,817,300.26

Finding the Fourth Proportional to 372,359,390.92, 513,855,935.11 and 215,817,300.26

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Solution

The fourth proportional to 372,359,390.92, 513,855,935.11 and 215,817,300.26 is: 297,827,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,359,390.92 : 513,855,935.11 = 215,817,300.26 : x
  2. Step 2: Convert to fraction form
    372,359,390.92/513,855,935.11 = 215,817,300.26/x
  3. Step 3: Cross multiply
    372,359,390.92x = 513,855,935.11 × 215,817,300.26
  4. Step 4: Simplify right side
    372,359,390.92x = 110,899,000,639,929,808
  5. Step 5: Solve for x
    x = 110,899,000,639,929,808/372,359,390.92
  6. Step 6: Final answer
    x = 297,827,860.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.