Home / 7,920,882,002.10-11,881,323,003.15-6,642,394,388.40

Finding the Fourth Proportional to 7,920,882,002.10, 11,881,323,003.15 and 6,642,394,388.40

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Solution

The fourth proportional to 7,920,882,002.10, 11,881,323,003.15 and 6,642,394,388.40 is: 9,963,591,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,882,002.10 : 11,881,323,003.15 = 6,642,394,388.40 : x
  2. Step 2: Convert to fraction form
    7,920,882,002.10/11,881,323,003.15 = 6,642,394,388.40/x
  3. Step 3: Cross multiply
    7,920,882,002.10x = 11,881,323,003.15 × 6,642,394,388.40
  4. Step 4: Simplify right side
    7,920,882,002.10x = 78,920,433,242,891,386,880
  5. Step 5: Solve for x
    x = 78,920,433,242,891,386,880/7,920,882,002.10
  6. Step 6: Final answer
    x = 9,963,591,582.60

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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.