Home / 131,477,805.57-181,497,487.28-78,573,182.07

Finding the Fourth Proportional to 131,477,805.57, 181,497,487.28 and 78,573,182.07

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Solution

The fourth proportional to 131,477,805.57, 181,497,487.28 and 78,573,182.07 is: 108,465,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,477,805.57 : 181,497,487.28 = 78,573,182.07 : x
  2. Step 2: Convert to fraction form
    131,477,805.57/181,497,487.28 = 78,573,182.07/x
  3. Step 3: Cross multiply
    131,477,805.57x = 181,497,487.28 × 78,573,182.07
  4. Step 4: Simplify right side
    131,477,805.57x = 14,260,835,112,906,082
  5. Step 5: Solve for x
    x = 14,260,835,112,906,082/131,477,805.57
  6. Step 6: Final answer
    x = 108,465,722.04

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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.