Home / 136,705,266.78-188,655,040.11-74,824,276.74

Finding the Fourth Proportional to 136,705,266.78, 188,655,040.11 and 74,824,276.74

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Solution

The fourth proportional to 136,705,266.78, 188,655,040.11 and 74,824,276.74 is: 103,258,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,705,266.78 : 188,655,040.11 = 74,824,276.74 : x
  2. Step 2: Convert to fraction form
    136,705,266.78/188,655,040.11 = 74,824,276.74/x
  3. Step 3: Cross multiply
    136,705,266.78x = 188,655,040.11 × 74,824,276.74
  4. Step 4: Simplify right side
    136,705,266.78x = 14,115,976,929,586,440
  5. Step 5: Solve for x
    x = 14,115,976,929,586,440/136,705,266.78
  6. Step 6: Final answer
    x = 103,258,471.76

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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.