Home / 103,558,396.62-142,914,019.86-56,518,045.86

Finding the Fourth Proportional to 103,558,396.62, 142,914,019.86 and 56,518,045.86

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Solution

The fourth proportional to 103,558,396.62, 142,914,019.86 and 56,518,045.86 is: 77,996,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558,396.62 : 142,914,019.86 = 56,518,045.86 : x
  2. Step 2: Convert to fraction form
    103,558,396.62/142,914,019.86 = 56,518,045.86/x
  3. Step 3: Cross multiply
    103,558,396.62x = 142,914,019.86 × 56,518,045.86
  4. Step 4: Simplify right side
    103,558,396.62x = 8,077,221,128,484,432
  5. Step 5: Solve for x
    x = 8,077,221,128,484,432/103,558,396.62
  6. Step 6: Final answer
    x = 77,996,776.62

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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.