Home / 65,780,781.60-98,671,172.40-45,373,447.20

Finding the Fourth Proportional to 65,780,781.60, 98,671,172.40 and 45,373,447.20

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Solution

The fourth proportional to 65,780,781.60, 98,671,172.40 and 45,373,447.20 is: 68,060,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,780,781.60 : 98,671,172.40 = 45,373,447.20 : x
  2. Step 2: Convert to fraction form
    65,780,781.60/98,671,172.40 = 45,373,447.20/x
  3. Step 3: Cross multiply
    65,780,781.60x = 98,671,172.40 × 45,373,447.20
  4. Step 4: Simplify right side
    65,780,781.60x = 4,477,051,231,053,498
  5. Step 5: Solve for x
    x = 4,477,051,231,053,498/65,780,781.60
  6. Step 6: Final answer
    x = 68,060,170.80

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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.