Home / 18,861,857.40-28,292,786.10-17,745,831.30

Finding the Fourth Proportional to 18,861,857.40, 28,292,786.10 and 17,745,831.30

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Solution

The fourth proportional to 18,861,857.40, 28,292,786.10 and 17,745,831.30 is: 26,618,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,857.40 : 28,292,786.10 = 17,745,831.30 : x
  2. Step 2: Convert to fraction form
    18,861,857.40/28,292,786.10 = 17,745,831.30/x
  3. Step 3: Cross multiply
    18,861,857.40x = 28,292,786.10 × 17,745,831.30
  4. Step 4: Simplify right side
    18,861,857.40x = 502,079,009,137,585
  5. Step 5: Solve for x
    x = 502,079,009,137,585/18,861,857.40
  6. Step 6: Final answer
    x = 26,618,746.95

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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.