Home / 15,062,287,071.81-20,785,331,980.40-8,195,712,052.21

Finding the Fourth Proportional to 15,062,287,071.81, 20,785,331,980.40 and 8,195,712,052.21

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Solution

The fourth proportional to 15,062,287,071.81, 20,785,331,980.40 and 8,195,712,052.21 is: 11,309,743,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062,287,071.81 : 20,785,331,980.40 = 8,195,712,052.21 : x
  2. Step 2: Convert to fraction form
    15,062,287,071.81/20,785,331,980.40 = 8,195,712,052.21/x
  3. Step 3: Cross multiply
    15,062,287,071.81x = 20,785,331,980.40 × 8,195,712,052.21
  4. Step 4: Simplify right side
    15,062,287,071.81x = 170,350,595,820,916,736,000
  5. Step 5: Solve for x
    x = 170,350,595,820,916,736,000/15,062,287,071.81
  6. Step 6: Final answer
    x = 11,309,743,003.09

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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.