Home / 520,156,753.91-717,920,602.68-308,581,022.04

Finding the Fourth Proportional to 520,156,753.91, 717,920,602.68 and 308,581,022.04

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Solution

The fourth proportional to 520,156,753.91, 717,920,602.68 and 308,581,022.04 is: 425,903,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,156,753.91 : 717,920,602.68 = 308,581,022.04 : x
  2. Step 2: Convert to fraction form
    520,156,753.91/717,920,602.68 = 308,581,022.04/x
  3. Step 3: Cross multiply
    520,156,753.91x = 717,920,602.68 × 308,581,022.04
  4. Step 4: Simplify right side
    520,156,753.91x = 221,536,673,318,567,168
  5. Step 5: Solve for x
    x = 221,536,673,318,567,168/520,156,753.91
  6. Step 6: Final answer
    x = 425,903,675.48

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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.