Home / 102,007,218,601.52-140,815,106,421.86-65,895,862,389.43

Finding the Fourth Proportional to 102,007,218,601.52, 140,815,106,421.86 and 65,895,862,389.43

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Solution

The fourth proportional to 102,007,218,601.52, 140,815,106,421.86 and 65,895,862,389.43 is: 90,965,453,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,007,218,601.52 : 140,815,106,421.86 = 65,895,862,389.43 : x
  2. Step 2: Convert to fraction form
    102,007,218,601.52/140,815,106,421.86 = 65,895,862,389.43/x
  3. Step 3: Cross multiply
    102,007,218,601.52x = 140,815,106,421.86 × 65,895,862,389.43
  4. Step 4: Simplify right side
    102,007,218,601.52x = 9,279,132,875,127,122,821,120
  5. Step 5: Solve for x
    x = 9,279,132,875,127,122,821,120/102,007,218,601.52
  6. Step 6: Final answer
    x = 90,965,453,252.63

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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.