Home / 20,740,534.48-28,617,664.38-11,918,281.72

Finding the Fourth Proportional to 20,740,534.48, 28,617,664.38 and 11,918,281.72

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Solution

The fourth proportional to 20,740,534.48, 28,617,664.38 and 11,918,281.72 is: 16,444,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,534.48 : 28,617,664.38 = 11,918,281.72 : x
  2. Step 2: Convert to fraction form
    20,740,534.48/28,617,664.38 = 11,918,281.72/x
  3. Step 3: Cross multiply
    20,740,534.48x = 28,617,664.38 × 11,918,281.72
  4. Step 4: Simplify right side
    20,740,534.48x = 341,073,386,249,249.12
  5. Step 5: Solve for x
    x = 341,073,386,249,249.12/20,740,534.48
  6. Step 6: Final answer
    x = 16,444,773.23

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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.