Home / 10,121,764.80-15,182,647.20-9,684,926.40

Finding the Fourth Proportional to 10,121,764.80, 15,182,647.20 and 9,684,926.40

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Solution

The fourth proportional to 10,121,764.80, 15,182,647.20 and 9,684,926.40 is: 14,527,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121,764.80 : 15,182,647.20 = 9,684,926.40 : x
  2. Step 2: Convert to fraction form
    10,121,764.80/15,182,647.20 = 9,684,926.40/x
  3. Step 3: Cross multiply
    10,121,764.80x = 15,182,647.20 × 9,684,926.40
  4. Step 4: Simplify right side
    10,121,764.80x = 147,042,820,689,166.09
  5. Step 5: Solve for x
    x = 147,042,820,689,166.09/10,121,764.80
  6. Step 6: Final answer
    x = 14,527,389.60

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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.