Home / 100,012,227.20-149,620,209.60-86,696,950.40

Finding the Fourth Proportional to 100,012,227.20, 149,620,209.60 and 86,696,950.40

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Solution

The fourth proportional to 100,012,227.20, 149,620,209.60 and 86,696,950.40 is: 129,700,300.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,012,227.20 : 149,620,209.60 = 86,696,950.40 : x
  2. Step 2: Convert to fraction form
    100,012,227.20/149,620,209.60 = 86,696,950.40/x
  3. Step 3: Cross multiply
    100,012,227.20x = 149,620,209.60 × 86,696,950.40
  4. Step 4: Simplify right side
    100,012,227.20x = 12,971,615,890,528,804
  5. Step 5: Solve for x
    x = 12,971,615,890,528,804/100,012,227.20
  6. Step 6: Final answer
    x = 129,700,300.19

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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.