Home / 745,155,406.75-1,028,321,262.14-410,639,931.57

Finding the Fourth Proportional to 745,155,406.75, 1,028,321,262.14 and 410,639,931.57

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Solution

The fourth proportional to 745,155,406.75, 1,028,321,262.14 and 410,639,931.57 is: 566,686,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,155,406.75 : 1,028,321,262.14 = 410,639,931.57 : x
  2. Step 2: Convert to fraction form
    745,155,406.75/1,028,321,262.14 = 410,639,931.57/x
  3. Step 3: Cross multiply
    745,155,406.75x = 1,028,321,262.14 × 410,639,931.57
  4. Step 4: Simplify right side
    745,155,406.75x = 422,269,772,717,145,600
  5. Step 5: Solve for x
    x = 422,269,772,717,145,600/745,155,406.75
  6. Step 6: Final answer
    x = 566,686,853.36

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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.