Home / 78,857,798,295.71-108,823,857,306.97-42,728,802,775.98

Finding the Fourth Proportional to 78,857,798,295.71, 108,823,857,306.97 and 42,728,802,775.98

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Solution

The fourth proportional to 78,857,798,295.71, 108,823,857,306.97 and 42,728,802,775.98 is: 58,965,799,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857,798,295.71 : 108,823,857,306.97 = 42,728,802,775.98 : x
  2. Step 2: Convert to fraction form
    78,857,798,295.71/108,823,857,306.97 = 42,728,802,775.98/x
  3. Step 3: Cross multiply
    78,857,798,295.71x = 108,823,857,306.97 × 42,728,802,775.98
  4. Step 4: Simplify right side
    78,857,798,295.71x = 4,649,913,136,190,911,414,272
  5. Step 5: Solve for x
    x = 4,649,913,136,190,911,414,272/78,857,798,295.71
  6. Step 6: Final answer
    x = 58,965,799,663.27

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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.