Home / 12,528,215,565.71-17,289,265,149.70-6,812,834,262.79

Finding the Fourth Proportional to 12,528,215,565.71, 17,289,265,149.70 and 6,812,834,262.79

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Solution

The fourth proportional to 12,528,215,565.71, 17,289,265,149.70 and 6,812,834,262.79 is: 9,401,889,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,215,565.71 : 17,289,265,149.70 = 6,812,834,262.79 : x
  2. Step 2: Convert to fraction form
    12,528,215,565.71/17,289,265,149.70 = 6,812,834,262.79/x
  3. Step 3: Cross multiply
    12,528,215,565.71x = 17,289,265,149.70 × 6,812,834,262.79
  4. Step 4: Simplify right side
    12,528,215,565.71x = 117,788,897,990,308,151,296
  5. Step 5: Solve for x
    x = 117,788,897,990,308,151,296/12,528,215,565.71
  6. Step 6: Final answer
    x = 9,401,889,468.82

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Double scale
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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.