Home / 288,187,043.80-397,693,373.16-156,026,983.72

Finding the Fourth Proportional to 288,187,043.80, 397,693,373.16 and 156,026,983.72

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Solution

The fourth proportional to 288,187,043.80, 397,693,373.16 and 156,026,983.72 is: 215,314,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,187,043.80 : 397,693,373.16 = 156,026,983.72 : x
  2. Step 2: Convert to fraction form
    288,187,043.80/397,693,373.16 = 156,026,983.72/x
  3. Step 3: Cross multiply
    288,187,043.80x = 397,693,373.16 × 156,026,983.72
  4. Step 4: Simplify right side
    288,187,043.80x = 62,050,897,459,587,208
  5. Step 5: Solve for x
    x = 62,050,897,459,587,208/288,187,043.80
  6. Step 6: Final answer
    x = 215,314,667.31

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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.