Home / 91,034,416.80-136,551,625.20-90,467,546.40

Finding the Fourth Proportional to 91,034,416.80, 136,551,625.20 and 90,467,546.40

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Solution

The fourth proportional to 91,034,416.80, 136,551,625.20 and 90,467,546.40 is: 135,701,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,034,416.80 : 136,551,625.20 = 90,467,546.40 : x
  2. Step 2: Convert to fraction form
    91,034,416.80/136,551,625.20 = 90,467,546.40/x
  3. Step 3: Cross multiply
    91,034,416.80x = 136,551,625.20 × 90,467,546.40
  4. Step 4: Simplify right side
    91,034,416.80x = 12,353,490,488,776,410
  5. Step 5: Solve for x
    x = 12,353,490,488,776,410/91,034,416.80
  6. Step 6: Final answer
    x = 135,701,319.60

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1.5x scale

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.