Home / 138,384,660.50-190,974,817.19-76,508,984.87

Finding the Fourth Proportional to 138,384,660.50, 190,974,817.19 and 76,508,984.87

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Solution

The fourth proportional to 138,384,660.50, 190,974,817.19 and 76,508,984.87 is: 105,584,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,384,660.50 : 190,974,817.19 = 76,508,984.87 : x
  2. Step 2: Convert to fraction form
    138,384,660.50/190,974,817.19 = 76,508,984.87/x
  3. Step 3: Cross multiply
    138,384,660.50x = 190,974,817.19 × 76,508,984.87
  4. Step 4: Simplify right side
    138,384,660.50x = 14,611,289,398,893,280
  5. Step 5: Solve for x
    x = 14,611,289,398,893,280/138,384,660.50
  6. Step 6: Final answer
    x = 105,584,602.70

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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.