Home / 20,145,088.20-30,249,125.10-11,642,032.20

Finding the Fourth Proportional to 20,145,088.20, 30,249,125.10 and 11,642,032.20

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Solution

The fourth proportional to 20,145,088.20, 30,249,125.10 and 11,642,032.20 is: 17,481,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145,088.20 : 30,249,125.10 = 11,642,032.20 : x
  2. Step 2: Convert to fraction form
    20,145,088.20/30,249,125.10 = 11,642,032.20/x
  3. Step 3: Cross multiply
    20,145,088.20x = 30,249,125.10 × 11,642,032.20
  4. Step 4: Simplify right side
    20,145,088.20x = 352,161,288,436,028.19
  5. Step 5: Solve for x
    x = 352,161,288,436,028.19/20,145,088.20
  6. Step 6: Final answer
    x = 17,481,248.28

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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.