Home / 18,537,332.40-27,805,998.60-12,868,628.40

Finding the Fourth Proportional to 18,537,332.40, 27,805,998.60 and 12,868,628.40

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Solution

The fourth proportional to 18,537,332.40, 27,805,998.60 and 12,868,628.40 is: 19,302,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537,332.40 : 27,805,998.60 = 12,868,628.40 : x
  2. Step 2: Convert to fraction form
    18,537,332.40/27,805,998.60 = 12,868,628.40/x
  3. Step 3: Cross multiply
    18,537,332.40x = 27,805,998.60 × 12,868,628.40
  4. Step 4: Simplify right side
    18,537,332.40x = 357,825,063,274,320.25
  5. Step 5: Solve for x
    x = 357,825,063,274,320.25/18,537,332.40
  6. Step 6: Final answer
    x = 19,302,942.60

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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.