Home / 143,931,017.87-215,897,159.31-45,563,207.72

Finding the Fourth Proportional to 143,931,017.87, 215,897,159.31 and 45,563,207.72

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Solution

The fourth proportional to 143,931,017.87, 215,897,159.31 and 45,563,207.72 is: 68,345,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,931,017.87 : 215,897,159.31 = 45,563,207.72 : x
  2. Step 2: Convert to fraction form
    143,931,017.87/215,897,159.31 = 45,563,207.72/x
  3. Step 3: Cross multiply
    143,931,017.87x = 215,897,159.31 × 45,563,207.72
  4. Step 4: Simplify right side
    143,931,017.87x = 9,836,967,114,719,976
  5. Step 5: Solve for x
    x = 9,836,967,114,719,976/143,931,017.87
  6. Step 6: Final answer
    x = 68,345,011.80

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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.