Home / 38,561,812.29-53,215,402.02-20,920,713.94

Finding the Fourth Proportional to 38,561,812.29, 53,215,402.02 and 20,920,713.94

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Solution

The fourth proportional to 38,561,812.29, 53,215,402.02 and 20,920,713.94 is: 28,870,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,812.29 : 53,215,402.02 = 20,920,713.94 : x
  2. Step 2: Convert to fraction form
    38,561,812.29/53,215,402.02 = 20,920,713.94/x
  3. Step 3: Cross multiply
    38,561,812.29x = 53,215,402.02 × 20,920,713.94
  4. Step 4: Simplify right side
    38,561,812.29x = 1,113,304,202,727,682
  5. Step 5: Solve for x
    x = 1,113,304,202,727,682/38,561,812.29
  6. Step 6: Final answer
    x = 28,870,640.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.