Home / 8,642,913,115.92-11,920,639,456.53-7,439,302,881.78

Finding the Fourth Proportional to 8,642,913,115.92, 11,920,639,456.53 and 7,439,302,881.78

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Solution

The fourth proportional to 8,642,913,115.92, 11,920,639,456.53 and 7,439,302,881.78 is: 10,260,573,752.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,913,115.92 : 11,920,639,456.53 = 7,439,302,881.78 : x
  2. Step 2: Convert to fraction form
    8,642,913,115.92/11,920,639,456.53 = 7,439,302,881.78/x
  3. Step 3: Cross multiply
    8,642,913,115.92x = 11,920,639,456.53 × 7,439,302,881.78
  4. Step 4: Simplify right side
    8,642,913,115.92x = 88,681,247,461,624,004,608
  5. Step 5: Solve for x
    x = 88,681,247,461,624,004,608/8,642,913,115.92
  6. Step 6: Final answer
    x = 10,260,573,752.42

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1.5x scale

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.