Home / 12,988,928,437.20-17,924,721,245.28-7,048,480,939.20

Finding the Fourth Proportional to 12,988,928,437.20, 17,924,721,245.28 and 7,048,480,939.20

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Solution

The fourth proportional to 12,988,928,437.20, 17,924,721,245.28 and 7,048,480,939.20 is: 9,726,903,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988,928,437.20 : 17,924,721,245.28 = 7,048,480,939.20 : x
  2. Step 2: Convert to fraction form
    12,988,928,437.20/17,924,721,245.28 = 7,048,480,939.20/x
  3. Step 3: Cross multiply
    12,988,928,437.20x = 17,924,721,245.28 × 7,048,480,939.20
  4. Step 4: Simplify right side
    12,988,928,437.20x = 126,342,056,037,829,361,664
  5. Step 5: Solve for x
    x = 126,342,056,037,829,361,664/12,988,928,437.20
  6. Step 6: Final answer
    x = 9,726,903,697.15

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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.