Home / 890,500,812.39-1,335,761,502.48-268,721,431.47

Finding the Fourth Proportional to 890,500,812.39, 1,335,761,502.48 and 268,721,431.47

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Solution

The fourth proportional to 890,500,812.39, 1,335,761,502.48 and 268,721,431.47 is: 403,085,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,500,812.39 : 1,335,761,502.48 = 268,721,431.47 : x
  2. Step 2: Convert to fraction form
    890,500,812.39/1,335,761,502.48 = 268,721,431.47/x
  3. Step 3: Cross multiply
    890,500,812.39x = 1,335,761,502.48 × 268,721,431.47
  4. Step 4: Simplify right side
    890,500,812.39x = 358,947,743,048,943,616
  5. Step 5: Solve for x
    x = 358,947,743,048,943,616/890,500,812.39
  6. Step 6: Final answer
    x = 403,085,250.52

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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.