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Finding the Fourth Proportional to 66,456,045.30, 99,684,067.95 and 64,963,053.30

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Solution

The fourth proportional to 66,456,045.30, 99,684,067.95 and 64,963,053.30 is: 97,444,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456,045.30 : 99,684,067.95 = 64,963,053.30 : x
  2. Step 2: Convert to fraction form
    66,456,045.30/99,684,067.95 = 64,963,053.30/x
  3. Step 3: Cross multiply
    66,456,045.30x = 99,684,067.95 × 64,963,053.30
  4. Step 4: Simplify right side
    66,456,045.30x = 6,475,781,419,396,672
  5. Step 5: Solve for x
    x = 6,475,781,419,396,672/66,456,045.30
  6. Step 6: Final answer
    x = 97,444,579.95

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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.