Home / 18,120,054.60-25,005,658.50-9,971,292.60

Finding the Fourth Proportional to 18,120,054.60, 25,005,658.50 and 9,971,292.60

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Solution

The fourth proportional to 18,120,054.60, 25,005,658.50 and 9,971,292.60 is: 13,760,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,054.60 : 25,005,658.50 = 9,971,292.60 : x
  2. Step 2: Convert to fraction form
    18,120,054.60/25,005,658.50 = 9,971,292.60/x
  3. Step 3: Cross multiply
    18,120,054.60x = 25,005,658.50 × 9,971,292.60
  4. Step 4: Simplify right side
    18,120,054.60x = 249,338,737,559,177.09
  5. Step 5: Solve for x
    x = 249,338,737,559,177.09/18,120,054.60
  6. Step 6: Final answer
    x = 13,760,374.52

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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.