Home / 100,691,337.41-138,946,533.94-56,629,823.59

Finding the Fourth Proportional to 100,691,337.41, 138,946,533.94 and 56,629,823.59

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Solution

The fourth proportional to 100,691,337.41, 138,946,533.94 and 56,629,823.59 is: 78,144,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,691,337.41 : 138,946,533.94 = 56,629,823.59 : x
  2. Step 2: Convert to fraction form
    100,691,337.41/138,946,533.94 = 56,629,823.59/x
  3. Step 3: Cross multiply
    100,691,337.41x = 138,946,533.94 × 56,629,823.59
  4. Step 4: Simplify right side
    100,691,337.41x = 7,868,517,706,080,312
  5. Step 5: Solve for x
    x = 7,868,517,706,080,312/100,691,337.41
  6. Step 6: Final answer
    x = 78,144,931.91

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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.