Home / 231,835,919.72-319,941,241.89-127,417,692.20

Finding the Fourth Proportional to 231,835,919.72, 319,941,241.89 and 127,417,692.20

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Solution

The fourth proportional to 231,835,919.72, 319,941,241.89 and 127,417,692.20 is: 175,840,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,835,919.72 : 319,941,241.89 = 127,417,692.20 : x
  2. Step 2: Convert to fraction form
    231,835,919.72/319,941,241.89 = 127,417,692.20/x
  3. Step 3: Cross multiply
    231,835,919.72x = 319,941,241.89 × 127,417,692.20
  4. Step 4: Simplify right side
    231,835,919.72x = 40,766,174,681,225,768
  5. Step 5: Solve for x
    x = 40,766,174,681,225,768/231,835,919.72
  6. Step 6: Final answer
    x = 175,840,632.16

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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.