Home / 90,825,869.40-136,238,804.10-74,683,349.03

Finding the Fourth Proportional to 90,825,869.40, 136,238,804.10 and 74,683,349.03

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Solution

The fourth proportional to 90,825,869.40, 136,238,804.10 and 74,683,349.03 is: 112,025,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,869.40 : 136,238,804.10 = 74,683,349.03 : x
  2. Step 2: Convert to fraction form
    90,825,869.40/136,238,804.10 = 74,683,349.03/x
  3. Step 3: Cross multiply
    90,825,869.40x = 136,238,804.10 × 74,683,349.03
  4. Step 4: Simplify right side
    90,825,869.40x = 10,174,770,157,348,902
  5. Step 5: Solve for x
    x = 10,174,770,157,348,902/90,825,869.40
  6. Step 6: Final answer
    x = 112,025,023.54

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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.