Home / 12,659,377,113.74-18,990,811,867.40-7,349,989,712.33

Finding the Fourth Proportional to 12,659,377,113.74, 18,990,811,867.40 and 7,349,989,712.33

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Solution

The fourth proportional to 12,659,377,113.74, 18,990,811,867.40 and 7,349,989,712.33 is: 11,025,998,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,377,113.74 : 18,990,811,867.40 = 7,349,989,712.33 : x
  2. Step 2: Convert to fraction form
    12,659,377,113.74/18,990,811,867.40 = 7,349,989,712.33/x
  3. Step 3: Cross multiply
    12,659,377,113.74x = 18,990,811,867.40 × 7,349,989,712.33
  4. Step 4: Simplify right side
    12,659,377,113.74x = 139,582,271,854,226,489,344
  5. Step 5: Solve for x
    x = 139,582,271,854,226,489,344/12,659,377,113.74
  6. Step 6: Final answer
    x = 11,025,998,404.19

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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.