Home / 121,611,264.40-182,448,000.60-85,779,456.40

Finding the Fourth Proportional to 121,611,264.40, 182,448,000.60 and 85,779,456.40

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Solution

The fourth proportional to 121,611,264.40, 182,448,000.60 and 85,779,456.40 is: 128,691,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,611,264.40 : 182,448,000.60 = 85,779,456.40 : x
  2. Step 2: Convert to fraction form
    121,611,264.40/182,448,000.60 = 85,779,456.40/x
  3. Step 3: Cross multiply
    121,611,264.40x = 182,448,000.60 × 85,779,456.40
  4. Step 4: Simplify right side
    121,611,264.40x = 15,650,290,312,734,874
  5. Step 5: Solve for x
    x = 15,650,290,312,734,874/121,611,264.40
  6. Step 6: Final answer
    x = 128,691,124.05

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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.