Home / 61,002,070.10-91,503,105.15-20,611,970.90

Finding the Fourth Proportional to 61,002,070.10, 91,503,105.15 and 20,611,970.90

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Solution

The fourth proportional to 61,002,070.10, 91,503,105.15 and 20,611,970.90 is: 30,917,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,002,070.10 : 91,503,105.15 = 20,611,970.90 : x
  2. Step 2: Convert to fraction form
    61,002,070.10/91,503,105.15 = 20,611,970.90/x
  3. Step 3: Cross multiply
    61,002,070.10x = 91,503,105.15 × 20,611,970.90
  4. Step 4: Simplify right side
    61,002,070.10x = 1,886,059,340,611,440
  5. Step 5: Solve for x
    x = 1,886,059,340,611,440/61,002,070.10
  6. Step 6: Final answer
    x = 30,917,956.35

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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.