Home / 989,917,334.70-1,484,876,002.05-445,721,750.70

Finding the Fourth Proportional to 989,917,334.70, 1,484,876,002.05 and 445,721,750.70

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Solution

The fourth proportional to 989,917,334.70, 1,484,876,002.05 and 445,721,750.70 is: 668,582,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,917,334.70 : 1,484,876,002.05 = 445,721,750.70 : x
  2. Step 2: Convert to fraction form
    989,917,334.70/1,484,876,002.05 = 445,721,750.70/x
  3. Step 3: Cross multiply
    989,917,334.70x = 1,484,876,002.05 × 445,721,750.70
  4. Step 4: Simplify right side
    989,917,334.70x = 661,841,531,206,142,720
  5. Step 5: Solve for x
    x = 661,841,531,206,142,720/989,917,334.70
  6. Step 6: Final answer
    x = 668,582,626.05

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Double scale
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Similar ratio
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1.5x scale

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.