Home / 20,411,587.40-30,617,381.10-18,852,693.80

Finding the Fourth Proportional to 20,411,587.40, 30,617,381.10 and 18,852,693.80

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Solution

The fourth proportional to 20,411,587.40, 30,617,381.10 and 18,852,693.80 is: 28,279,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411,587.40 : 30,617,381.10 = 18,852,693.80 : x
  2. Step 2: Convert to fraction form
    20,411,587.40/30,617,381.10 = 18,852,693.80/x
  3. Step 3: Cross multiply
    20,411,587.40x = 30,617,381.10 × 18,852,693.80
  4. Step 4: Simplify right side
    20,411,587.40x = 577,220,110,836,207.25
  5. Step 5: Solve for x
    x = 577,220,110,836,207.25/20,411,587.40
  6. Step 6: Final answer
    x = 28,279,040.70

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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.