Home / 144,009,721.20-215,846,620.20-57,705,452.40

Finding the Fourth Proportional to 144,009,721.20, 215,846,620.20 and 57,705,452.40

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Solution

The fourth proportional to 144,009,721.20, 215,846,620.20 and 57,705,452.40 is: 86,490,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,009,721.20 : 215,846,620.20 = 57,705,452.40 : x
  2. Step 2: Convert to fraction form
    144,009,721.20/215,846,620.20 = 57,705,452.40/x
  3. Step 3: Cross multiply
    144,009,721.20x = 215,846,620.20 × 57,705,452.40
  4. Step 4: Simplify right side
    144,009,721.20x = 12,455,526,867,651,978
  5. Step 5: Solve for x
    x = 12,455,526,867,651,978/144,009,721.20
  6. Step 6: Final answer
    x = 86,490,875.50

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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.