Home / 79,730,410.80-119,595,616.20-78,974,583.60

Finding the Fourth Proportional to 79,730,410.80, 119,595,616.20 and 78,974,583.60

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Solution

The fourth proportional to 79,730,410.80, 119,595,616.20 and 78,974,583.60 is: 118,461,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,730,410.80 : 119,595,616.20 = 78,974,583.60 : x
  2. Step 2: Convert to fraction form
    79,730,410.80/119,595,616.20 = 78,974,583.60/x
  3. Step 3: Cross multiply
    79,730,410.80x = 119,595,616.20 × 78,974,583.60
  4. Step 4: Simplify right side
    79,730,410.80x = 9,445,013,989,780,414
  5. Step 5: Solve for x
    x = 9,445,013,989,780,414/79,730,410.80
  6. Step 6: Final answer
    x = 118,461,875.40

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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.