Home / 102,790,628.10-141,882,830.28-66,121,199.10

Finding the Fourth Proportional to 102,790,628.10, 141,882,830.28 and 66,121,199.10

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Solution

The fourth proportional to 102,790,628.10, 141,882,830.28 and 66,121,199.10 is: 91,267,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790,628.10 : 141,882,830.28 = 66,121,199.10 : x
  2. Step 2: Convert to fraction form
    102,790,628.10/141,882,830.28 = 66,121,199.10/x
  3. Step 3: Cross multiply
    102,790,628.10x = 141,882,830.28 × 66,121,199.10
  4. Step 4: Simplify right side
    102,790,628.10x = 9,381,462,869,815,390
  5. Step 5: Solve for x
    x = 9,381,462,869,815,390/102,790,628.10
  6. Step 6: Final answer
    x = 91,267,686.98

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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.