Home / 138,711,058.20-208,066,587.30-130,208,002.20

Finding the Fourth Proportional to 138,711,058.20, 208,066,587.30 and 130,208,002.20

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Solution

The fourth proportional to 138,711,058.20, 208,066,587.30 and 130,208,002.20 is: 195,312,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,711,058.20 : 208,066,587.30 = 130,208,002.20 : x
  2. Step 2: Convert to fraction form
    138,711,058.20/208,066,587.30 = 130,208,002.20/x
  3. Step 3: Cross multiply
    138,711,058.20x = 208,066,587.30 × 130,208,002.20
  4. Step 4: Simplify right side
    138,711,058.20x = 27,091,934,656,904,896
  5. Step 5: Solve for x
    x = 27,091,934,656,904,896/138,711,058.20
  6. Step 6: Final answer
    x = 195,312,003.30

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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.