Home / 442,868,752.40-664,303,128.60-136,121,007.20

Finding the Fourth Proportional to 442,868,752.40, 664,303,128.60 and 136,121,007.20

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Solution

The fourth proportional to 442,868,752.40, 664,303,128.60 and 136,121,007.20 is: 204,181,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,752.40 : 664,303,128.60 = 136,121,007.20 : x
  2. Step 2: Convert to fraction form
    442,868,752.40/664,303,128.60 = 136,121,007.20/x
  3. Step 3: Cross multiply
    442,868,752.40x = 664,303,128.60 × 136,121,007.20
  4. Step 4: Simplify right side
    442,868,752.40x = 90,425,610,951,143,120
  5. Step 5: Solve for x
    x = 90,425,610,951,143,120/442,868,752.40
  6. Step 6: Final answer
    x = 204,181,510.80

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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.