Home / 152,053,537.81-209,838,308.76-85,972,617.31

Finding the Fourth Proportional to 152,053,537.81, 209,838,308.76 and 85,972,617.31

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Solution

The fourth proportional to 152,053,537.81, 209,838,308.76 and 85,972,617.31 is: 118,644,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,053,537.81 : 209,838,308.76 = 85,972,617.31 : x
  2. Step 2: Convert to fraction form
    152,053,537.81/209,838,308.76 = 85,972,617.31/x
  3. Step 3: Cross multiply
    152,053,537.81x = 209,838,308.76 × 85,972,617.31
  4. Step 4: Simplify right side
    152,053,537.81x = 18,040,348,616,001,100
  5. Step 5: Solve for x
    x = 18,040,348,616,001,100/152,053,537.81
  6. Step 6: Final answer
    x = 118,644,714.72

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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.