Home / 81,346,396.68-112,292,381.72-54,920,549.86

Finding the Fourth Proportional to 81,346,396.68, 112,292,381.72 and 54,920,549.86

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Solution

The fourth proportional to 81,346,396.68, 112,292,381.72 and 54,920,549.86 is: 75,813,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346,396.68 : 112,292,381.72 = 54,920,549.86 : x
  2. Step 2: Convert to fraction form
    81,346,396.68/112,292,381.72 = 54,920,549.86/x
  3. Step 3: Cross multiply
    81,346,396.68x = 112,292,381.72 × 54,920,549.86
  4. Step 4: Simplify right side
    81,346,396.68x = 6,167,159,349,151,412
  5. Step 5: Solve for x
    x = 6,167,159,349,151,412/81,346,396.68
  6. Step 6: Final answer
    x = 75,813,552.92

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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.