Home / 12,528,041.20-18,792,061.80-10,288,553.20

Finding the Fourth Proportional to 12,528,041.20, 18,792,061.80 and 10,288,553.20

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Solution

The fourth proportional to 12,528,041.20, 18,792,061.80 and 10,288,553.20 is: 15,432,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,041.20 : 18,792,061.80 = 10,288,553.20 : x
  2. Step 2: Convert to fraction form
    12,528,041.20/18,792,061.80 = 10,288,553.20/x
  3. Step 3: Cross multiply
    12,528,041.20x = 18,792,061.80 × 10,288,553.20
  4. Step 4: Simplify right side
    12,528,041.20x = 193,343,127,566,987.75
  5. Step 5: Solve for x
    x = 193,343,127,566,987.75/12,528,041.20
  6. Step 6: Final answer
    x = 15,432,829.80

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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.