Home / 21,148,946.20-31,724,109.06-10,067,613.40

Finding the Fourth Proportional to 21,148,946.20, 31,724,109.06 and 10,067,613.40

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Solution

The fourth proportional to 21,148,946.20, 31,724,109.06 and 10,067,613.40 is: 15,101,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,148,946.20 : 31,724,109.06 = 10,067,613.40 : x
  2. Step 2: Convert to fraction form
    21,148,946.20/31,724,109.06 = 10,067,613.40/x
  3. Step 3: Cross multiply
    21,148,946.20x = 31,724,109.06 × 10,067,613.40
  4. Step 4: Simplify right side
    21,148,946.20x = 319,386,065,475,517.38
  5. Step 5: Solve for x
    x = 319,386,065,475,517.38/21,148,946.20
  6. Step 6: Final answer
    x = 15,101,748.45

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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.