Home / 10,072,547,589.40-15,108,821,384.10-7,968,324,664.60

Finding the Fourth Proportional to 10,072,547,589.40, 15,108,821,384.10 and 7,968,324,664.60

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Solution

The fourth proportional to 10,072,547,589.40, 15,108,821,384.10 and 7,968,324,664.60 is: 11,952,486,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072,547,589.40 : 15,108,821,384.10 = 7,968,324,664.60 : x
  2. Step 2: Convert to fraction form
    10,072,547,589.40/15,108,821,384.10 = 7,968,324,664.60/x
  3. Step 3: Cross multiply
    10,072,547,589.40x = 15,108,821,384.10 × 7,968,324,664.60
  4. Step 4: Simplify right side
    10,072,547,589.40x = 120,391,994,087,959,953,408
  5. Step 5: Solve for x
    x = 120,391,994,087,959,953,408/10,072,547,589.40
  6. Step 6: Final answer
    x = 11,952,486,996.90

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Double scale
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Similar ratio
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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.