Home / 20,953,847.40-31,466,637.90-11,387,909.40

Finding the Fourth Proportional to 20,953,847.40, 31,466,637.90 and 11,387,909.40

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Solution

The fourth proportional to 20,953,847.40, 31,466,637.90 and 11,387,909.40 is: 17,101,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953,847.40 : 31,466,637.90 = 11,387,909.40 : x
  2. Step 2: Convert to fraction form
    20,953,847.40/31,466,637.90 = 11,387,909.40/x
  3. Step 3: Cross multiply
    20,953,847.40x = 31,466,637.90 × 11,387,909.40
  4. Step 4: Simplify right side
    20,953,847.40x = 358,339,221,527,806.25
  5. Step 5: Solve for x
    x = 358,339,221,527,806.25/20,953,847.40
  6. Step 6: Final answer
    x = 17,101,356.84

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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.