Home / 13,442,834.64-18,547,923.18-7,641,159.69

Finding the Fourth Proportional to 13,442,834.64, 18,547,923.18 and 7,641,159.69

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Solution

The fourth proportional to 13,442,834.64, 18,547,923.18 and 7,641,159.69 is: 10,542,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,834.64 : 18,547,923.18 = 7,641,159.69 : x
  2. Step 2: Convert to fraction form
    13,442,834.64/18,547,923.18 = 7,641,159.69/x
  3. Step 3: Cross multiply
    13,442,834.64x = 18,547,923.18 × 7,641,159.69
  4. Step 4: Simplify right side
    13,442,834.64x = 141,727,642,936,232.62
  5. Step 5: Solve for x
    x = 141,727,642,936,232.62/13,442,834.64
  6. Step 6: Final answer
    x = 10,542,987.90

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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.