Home / 12,916,979.20-19,368,470.40-5,344,710.40

Finding the Fourth Proportional to 12,916,979.20, 19,368,470.40 and 5,344,710.40

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Solution

The fourth proportional to 12,916,979.20, 19,368,470.40 and 5,344,710.40 is: 8,014,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916,979.20 : 19,368,470.40 = 5,344,710.40 : x
  2. Step 2: Convert to fraction form
    12,916,979.20/19,368,470.40 = 5,344,710.40/x
  3. Step 3: Cross multiply
    12,916,979.20x = 19,368,470.40 × 5,344,710.40
  4. Step 4: Simplify right side
    12,916,979.20x = 103,518,865,178,972.16
  5. Step 5: Solve for x
    x = 103,518,865,178,972.16/12,916,979.20
  6. Step 6: Final answer
    x = 8,014,169.84

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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.