Home / 86,948,989.20-130,423,483.80-82,697,461.20

Finding the Fourth Proportional to 86,948,989.20, 130,423,483.80 and 82,697,461.20

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Solution

The fourth proportional to 86,948,989.20, 130,423,483.80 and 82,697,461.20 is: 124,046,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948,989.20 : 130,423,483.80 = 82,697,461.20 : x
  2. Step 2: Convert to fraction form
    86,948,989.20/130,423,483.80 = 82,697,461.20/x
  3. Step 3: Cross multiply
    86,948,989.20x = 130,423,483.80 × 82,697,461.20
  4. Step 4: Simplify right side
    86,948,989.20x = 10,785,690,991,119,328
  5. Step 5: Solve for x
    x = 10,785,690,991,119,328/86,948,989.20
  6. Step 6: Final answer
    x = 124,046,191.80

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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.