Home / 140,042,141.34-193,258,422.54-77,318,360.70

Finding the Fourth Proportional to 140,042,141.34, 193,258,422.54 and 77,318,360.70

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Solution

The fourth proportional to 140,042,141.34, 193,258,422.54 and 77,318,360.70 is: 106,699,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,042,141.34 : 193,258,422.54 = 77,318,360.70 : x
  2. Step 2: Convert to fraction form
    140,042,141.34/193,258,422.54 = 77,318,360.70/x
  3. Step 3: Cross multiply
    140,042,141.34x = 193,258,422.54 × 77,318,360.70
  4. Step 4: Simplify right side
    140,042,141.34x = 14,942,424,422,260,730
  5. Step 5: Solve for x
    x = 14,942,424,422,260,730/140,042,141.34
  6. Step 6: Final answer
    x = 106,699,485.45

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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.