Home / 20,129,363.80-30,194,045.70-17,389,490.20

Finding the Fourth Proportional to 20,129,363.80, 30,194,045.70 and 17,389,490.20

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Solution

The fourth proportional to 20,129,363.80, 30,194,045.70 and 17,389,490.20 is: 26,084,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,363.80 : 30,194,045.70 = 17,389,490.20 : x
  2. Step 2: Convert to fraction form
    20,129,363.80/30,194,045.70 = 17,389,490.20/x
  3. Step 3: Cross multiply
    20,129,363.80x = 30,194,045.70 × 17,389,490.20
  4. Step 4: Simplify right side
    20,129,363.80x = 525,059,061,798,502.12
  5. Step 5: Solve for x
    x = 525,059,061,798,502.12/20,129,363.80
  6. Step 6: Final answer
    x = 26,084,235.30

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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.