Home / 5,260,343,308.89-7,889,528,480.54-2,639,443,701.21

Finding the Fourth Proportional to 5,260,343,308.89, 7,889,528,480.54 and 2,639,443,701.21

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Solution

The fourth proportional to 5,260,343,308.89, 7,889,528,480.54 and 2,639,443,701.21 is: 3,958,670,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260,343,308.89 : 7,889,528,480.54 = 2,639,443,701.21 : x
  2. Step 2: Convert to fraction form
    5,260,343,308.89/7,889,528,480.54 = 2,639,443,701.21/x
  3. Step 3: Cross multiply
    5,260,343,308.89x = 7,889,528,480.54 × 2,639,443,701.21
  4. Step 4: Simplify right side
    5,260,343,308.89x = 20,823,966,253,465,006,080
  5. Step 5: Solve for x
    x = 20,823,966,253,465,006,080/5,260,343,308.89
  6. Step 6: Final answer
    x = 3,958,670,571.61

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Double scale
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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.