Home / 82,112,569.20-123,168,853.80-80,837,110.80

Finding the Fourth Proportional to 82,112,569.20, 123,168,853.80 and 80,837,110.80

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Solution

The fourth proportional to 82,112,569.20, 123,168,853.80 and 80,837,110.80 is: 121,255,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,112,569.20 : 123,168,853.80 = 80,837,110.80 : x
  2. Step 2: Convert to fraction form
    82,112,569.20/123,168,853.80 = 80,837,110.80/x
  3. Step 3: Cross multiply
    82,112,569.20x = 123,168,853.80 × 80,837,110.80
  4. Step 4: Simplify right side
    82,112,569.20x = 9,956,614,281,739,600
  5. Step 5: Solve for x
    x = 9,956,614,281,739,600/82,112,569.20
  6. Step 6: Final answer
    x = 121,255,666.20

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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.