Home / 81,514,918.58-122,272,355.98-55,878,204.74

Finding the Fourth Proportional to 81,514,918.58, 122,272,355.98 and 55,878,204.74

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Solution

The fourth proportional to 81,514,918.58, 122,272,355.98 and 55,878,204.74 is: 83,817,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,514,918.58 : 122,272,355.98 = 55,878,204.74 : x
  2. Step 2: Convert to fraction form
    81,514,918.58/122,272,355.98 = 55,878,204.74/x
  3. Step 3: Cross multiply
    81,514,918.58x = 122,272,355.98 × 55,878,204.74
  4. Step 4: Simplify right side
    81,514,918.58x = 6,832,359,741,492,604
  5. Step 5: Solve for x
    x = 6,832,359,741,492,604/81,514,918.58
  6. Step 6: Final answer
    x = 83,817,292.10

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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.