Home / 1,117,545,667.28-1,542,247,963.07-641,323,158.65

Finding the Fourth Proportional to 1,117,545,667.28, 1,542,247,963.07 and 641,323,158.65

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Solution

The fourth proportional to 1,117,545,667.28, 1,542,247,963.07 and 641,323,158.65 is: 885,046,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,545,667.28 : 1,542,247,963.07 = 641,323,158.65 : x
  2. Step 2: Convert to fraction form
    1,117,545,667.28/1,542,247,963.07 = 641,323,158.65/x
  3. Step 3: Cross multiply
    1,117,545,667.28x = 1,542,247,963.07 × 641,323,158.65
  4. Step 4: Simplify right side
    1,117,545,667.28x = 989,079,335,097,580,928
  5. Step 5: Solve for x
    x = 989,079,335,097,580,928/1,117,545,667.28
  6. Step 6: Final answer
    x = 885,046,011.14

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Double scale
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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.