Home / 103,032,070.30-154,548,105.45-72,798,982.30

Finding the Fourth Proportional to 103,032,070.30, 154,548,105.45 and 72,798,982.30

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Solution

The fourth proportional to 103,032,070.30, 154,548,105.45 and 72,798,982.30 is: 109,198,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,032,070.30 : 154,548,105.45 = 72,798,982.30 : x
  2. Step 2: Convert to fraction form
    103,032,070.30/154,548,105.45 = 72,798,982.30/x
  3. Step 3: Cross multiply
    103,032,070.30x = 154,548,105.45 × 72,798,982.30
  4. Step 4: Simplify right side
    103,032,070.30x = 11,250,944,793,153,082
  5. Step 5: Solve for x
    x = 11,250,944,793,153,082/103,032,070.30
  6. Step 6: Final answer
    x = 109,198,473.45

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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.