Home / 152,053,504.80-209,838,263.21-85,972,584.29

Finding the Fourth Proportional to 152,053,504.80, 209,838,263.21 and 85,972,584.29

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Solution

The fourth proportional to 152,053,504.80, 209,838,263.21 and 85,972,584.29 is: 118,644,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,053,504.80 : 209,838,263.21 = 85,972,584.29 : x
  2. Step 2: Convert to fraction form
    152,053,504.80/209,838,263.21 = 85,972,584.29/x
  3. Step 3: Cross multiply
    152,053,504.80x = 209,838,263.21 × 85,972,584.29
  4. Step 4: Simplify right side
    152,053,504.80x = 18,040,337,771,088,932
  5. Step 5: Solve for x
    x = 18,040,337,771,088,932/152,053,504.80
  6. Step 6: Final answer
    x = 118,644,669.16

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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.