Home / 12,127,918.20-18,191,877.30-9,975,582.15

Finding the Fourth Proportional to 12,127,918.20, 18,191,877.30 and 9,975,582.15

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Solution

The fourth proportional to 12,127,918.20, 18,191,877.30 and 9,975,582.15 is: 14,963,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,918.20 : 18,191,877.30 = 9,975,582.15 : x
  2. Step 2: Convert to fraction form
    12,127,918.20/18,191,877.30 = 9,975,582.15/x
  3. Step 3: Cross multiply
    12,127,918.20x = 18,191,877.30 × 9,975,582.15
  4. Step 4: Simplify right side
    12,127,918.20x = 181,474,566,468,870.22
  5. Step 5: Solve for x
    x = 181,474,566,468,870.22/12,127,918.20
  6. Step 6: Final answer
    x = 14,963,373.23

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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.