Home / 152,053,521.80-209,838,286.67-85,972,601.30

Finding the Fourth Proportional to 152,053,521.80, 209,838,286.67 and 85,972,601.30

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Solution

The fourth proportional to 152,053,521.80, 209,838,286.67 and 85,972,601.30 is: 118,644,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,053,521.80 : 209,838,286.67 = 85,972,601.30 : x
  2. Step 2: Convert to fraction form
    152,053,521.80/209,838,286.67 = 85,972,601.30/x
  3. Step 3: Cross multiply
    152,053,521.80x = 209,838,286.67 × 85,972,601.30
  4. Step 4: Simplify right side
    152,053,521.80x = 18,040,343,355,875,960
  5. Step 5: Solve for x
    x = 18,040,343,355,875,960/152,053,521.80
  6. Step 6: Final answer
    x = 118,644,692.62

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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.