Home / 15,083,434,850.13-20,815,785,233.69-8,400,430,343.25

Finding the Fourth Proportional to 15,083,434,850.13, 20,815,785,233.69 and 8,400,430,343.25

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Solution

The fourth proportional to 15,083,434,850.13, 20,815,785,233.69 and 8,400,430,343.25 is: 11,592,953,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083,434,850.13 : 20,815,785,233.69 = 8,400,430,343.25 : x
  2. Step 2: Convert to fraction form
    15,083,434,850.13/20,815,785,233.69 = 8,400,430,343.25/x
  3. Step 3: Cross multiply
    15,083,434,850.13x = 20,815,785,233.69 × 8,400,430,343.25
  4. Step 4: Simplify right side
    15,083,434,850.13x = 174,861,553,895,631,159,296
  5. Step 5: Solve for x
    x = 174,861,553,895,631,159,296/15,083,434,850.13
  6. Step 6: Final answer
    x = 11,592,953,172.34

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Double scale
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1.5x scale

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.