Home / 80,931,389.36-111,678,565.74-45,647,250.08

Finding the Fourth Proportional to 80,931,389.36, 111,678,565.74 and 45,647,250.08

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Solution

The fourth proportional to 80,931,389.36, 111,678,565.74 and 45,647,250.08 is: 62,989,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931,389.36 : 111,678,565.74 = 45,647,250.08 : x
  2. Step 2: Convert to fraction form
    80,931,389.36/111,678,565.74 = 45,647,250.08/x
  3. Step 3: Cross multiply
    80,931,389.36x = 111,678,565.74 × 45,647,250.08
  4. Step 4: Simplify right side
    80,931,389.36x = 5,097,819,418,909,500
  5. Step 5: Solve for x
    x = 5,097,819,418,909,500/80,931,389.36
  6. Step 6: Final answer
    x = 62,989,397.06

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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.