Home / 102,384,134.40-153,576,201.60-66,104,428.80

Finding the Fourth Proportional to 102,384,134.40, 153,576,201.60 and 66,104,428.80

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Solution

The fourth proportional to 102,384,134.40, 153,576,201.60 and 66,104,428.80 is: 99,156,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,384,134.40 : 153,576,201.60 = 66,104,428.80 : x
  2. Step 2: Convert to fraction form
    102,384,134.40/153,576,201.60 = 66,104,428.80/x
  3. Step 3: Cross multiply
    102,384,134.40x = 153,576,201.60 × 66,104,428.80
  4. Step 4: Simplify right side
    102,384,134.40x = 10,152,067,084,041,646
  5. Step 5: Solve for x
    x = 10,152,067,084,041,646/102,384,134.40
  6. Step 6: Final answer
    x = 99,156,643.20

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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.