Home / 100,051,948.10-137,962,046.31-65,179,970.66

Finding the Fourth Proportional to 100,051,948.10, 137,962,046.31 and 65,179,970.66

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Solution

The fourth proportional to 100,051,948.10, 137,962,046.31 and 65,179,970.66 is: 89,876,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051,948.10 : 137,962,046.31 = 65,179,970.66 : x
  2. Step 2: Convert to fraction form
    100,051,948.10/137,962,046.31 = 65,179,970.66/x
  3. Step 3: Cross multiply
    100,051,948.10x = 137,962,046.31 × 65,179,970.66
  4. Step 4: Simplify right side
    100,051,948.10x = 8,992,362,130,679,361
  5. Step 5: Solve for x
    x = 8,992,362,130,679,361/100,051,948.10
  6. Step 6: Final answer
    x = 89,876,931.95

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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.