Home / 111,235,430.10-166,853,145.15-76,798,053.30

Finding the Fourth Proportional to 111,235,430.10, 166,853,145.15 and 76,798,053.30

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Solution

The fourth proportional to 111,235,430.10, 166,853,145.15 and 76,798,053.30 is: 115,197,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,235,430.10 : 166,853,145.15 = 76,798,053.30 : x
  2. Step 2: Convert to fraction form
    111,235,430.10/166,853,145.15 = 76,798,053.30/x
  3. Step 3: Cross multiply
    111,235,430.10x = 166,853,145.15 × 76,798,053.30
  4. Step 4: Simplify right side
    111,235,430.10x = 12,813,996,734,502,336
  5. Step 5: Solve for x
    x = 12,813,996,734,502,336/111,235,430.10
  6. Step 6: Final answer
    x = 115,197,079.95

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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.