Home / 12,300,782,713.38-18,457,891,200-5,217,163,765.20

Finding the Fourth Proportional to 12,300,782,713.38, 18,457,891,200 and 5,217,163,765.20

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Solution

The fourth proportional to 12,300,782,713.38, 18,457,891,200 and 5,217,163,765.20 is: 7,828,594,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300,782,713.38 : 18,457,891,200 = 5,217,163,765.20 : x
  2. Step 2: Convert to fraction form
    12,300,782,713.38/18,457,891,200 = 5,217,163,765.20/x
  3. Step 3: Cross multiply
    12,300,782,713.38x = 18,457,891,200 × 5,217,163,765.20
  4. Step 4: Simplify right side
    12,300,782,713.38x = 96,297,841,150,643,945,472
  5. Step 5: Solve for x
    x = 96,297,841,150,643,945,472/12,300,782,713.38
  6. Step 6: Final answer
    x = 7,828,594,602.02

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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.