Home / 78,534,440.43-108,374,031.02-45,019,892.24

Finding the Fourth Proportional to 78,534,440.43, 108,374,031.02 and 45,019,892.24

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Solution

The fourth proportional to 78,534,440.43, 108,374,031.02 and 45,019,892.24 is: 62,125,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534,440.43 : 108,374,031.02 = 45,019,892.24 : x
  2. Step 2: Convert to fraction form
    78,534,440.43/108,374,031.02 = 45,019,892.24/x
  3. Step 3: Cross multiply
    78,534,440.43x = 108,374,031.02 × 45,019,892.24
  4. Step 4: Simplify right side
    78,534,440.43x = 4,878,987,197,367,848
  5. Step 5: Solve for x
    x = 4,878,987,197,367,848/78,534,440.43
  6. Step 6: Final answer
    x = 62,125,446.76

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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.