Home / 154,602,433.80-231,931,644.30-77,732,008.20

Finding the Fourth Proportional to 154,602,433.80, 231,931,644.30 and 77,732,008.20

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Solution

The fourth proportional to 154,602,433.80, 231,931,644.30 and 77,732,008.20 is: 116,612,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,602,433.80 : 231,931,644.30 = 77,732,008.20 : x
  2. Step 2: Convert to fraction form
    154,602,433.80/231,931,644.30 = 77,732,008.20/x
  3. Step 3: Cross multiply
    154,602,433.80x = 231,931,644.30 × 77,732,008.20
  4. Step 4: Simplify right side
    154,602,433.80x = 18,028,512,476,567,084
  5. Step 5: Solve for x
    x = 18,028,512,476,567,084/154,602,433.80
  6. Step 6: Final answer
    x = 116,612,087.10

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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.