Home / 143,791,396.80-215,687,095.20-109,779,172.80

Finding the Fourth Proportional to 143,791,396.80, 215,687,095.20 and 109,779,172.80

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Solution

The fourth proportional to 143,791,396.80, 215,687,095.20 and 109,779,172.80 is: 164,668,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,791,396.80 : 215,687,095.20 = 109,779,172.80 : x
  2. Step 2: Convert to fraction form
    143,791,396.80/215,687,095.20 = 109,779,172.80/x
  3. Step 3: Cross multiply
    143,791,396.80x = 215,687,095.20 × 109,779,172.80
  4. Step 4: Simplify right side
    143,791,396.80x = 23,677,950,894,690,848
  5. Step 5: Solve for x
    x = 23,677,950,894,690,848/143,791,396.80
  6. Step 6: Final answer
    x = 164,668,759.20

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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.