Home / 18,720,154.91-25,834,811.71-10,460,417.70

Finding the Fourth Proportional to 18,720,154.91, 25,834,811.71 and 10,460,417.70

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Solution

The fourth proportional to 18,720,154.91, 25,834,811.71 and 10,460,417.70 is: 14,435,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,154.91 : 25,834,811.71 = 10,460,417.70 : x
  2. Step 2: Convert to fraction form
    18,720,154.91/25,834,811.71 = 10,460,417.70/x
  3. Step 3: Cross multiply
    18,720,154.91x = 25,834,811.71 × 10,460,417.70
  4. Step 4: Simplify right side
    18,720,154.91x = 270,242,921,687,451.25
  5. Step 5: Solve for x
    x = 270,242,921,687,451.25/18,720,154.91
  6. Step 6: Final answer
    x = 14,435,934.05

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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.