Home / 402,763,870.80-555,656,765.52-226,511,463.12

Finding the Fourth Proportional to 402,763,870.80, 555,656,765.52 and 226,511,463.12

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Solution

The fourth proportional to 402,763,870.80, 555,656,765.52 and 226,511,463.12 is: 312,497,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,763,870.80 : 555,656,765.52 = 226,511,463.12 : x
  2. Step 2: Convert to fraction form
    402,763,870.80/555,656,765.52 = 226,511,463.12/x
  3. Step 3: Cross multiply
    402,763,870.80x = 555,656,765.52 × 226,511,463.12
  4. Step 4: Simplify right side
    402,763,870.80x = 125,862,626,950,461,968
  5. Step 5: Solve for x
    x = 125,862,626,950,461,968/402,763,870.80
  6. Step 6: Final answer
    x = 312,497,311.89

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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.