Home / 21,581,140.20-32,371,710.30-20,585,812.20

Finding the Fourth Proportional to 21,581,140.20, 32,371,710.30 and 20,585,812.20

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Solution

The fourth proportional to 21,581,140.20, 32,371,710.30 and 20,585,812.20 is: 30,878,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,140.20 : 32,371,710.30 = 20,585,812.20 : x
  2. Step 2: Convert to fraction form
    21,581,140.20/32,371,710.30 = 20,585,812.20/x
  3. Step 3: Cross multiply
    21,581,140.20x = 32,371,710.30 × 20,585,812.20
  4. Step 4: Simplify right side
    21,581,140.20x = 666,397,948,828,605.62
  5. Step 5: Solve for x
    x = 666,397,948,828,605.62/21,581,140.20
  6. Step 6: Final answer
    x = 30,878,718.30

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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.