Home / 145,691,819.40-218,537,729.10-73,132,408.20

Finding the Fourth Proportional to 145,691,819.40, 218,537,729.10 and 73,132,408.20

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Solution

The fourth proportional to 145,691,819.40, 218,537,729.10 and 73,132,408.20 is: 109,698,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,691,819.40 : 218,537,729.10 = 73,132,408.20 : x
  2. Step 2: Convert to fraction form
    145,691,819.40/218,537,729.10 = 73,132,408.20/x
  3. Step 3: Cross multiply
    145,691,819.40x = 218,537,729.10 × 73,132,408.20
  4. Step 4: Simplify right side
    145,691,819.40x = 15,982,190,411,642,218
  5. Step 5: Solve for x
    x = 15,982,190,411,642,218/145,691,819.40
  6. Step 6: Final answer
    x = 109,698,612.30

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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.