Home / 102,106,785.50-140,908,263.28-55,697,245.82

Finding the Fourth Proportional to 102,106,785.50, 140,908,263.28 and 55,697,245.82

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Solution

The fourth proportional to 102,106,785.50, 140,908,263.28 and 55,697,245.82 is: 76,862,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,106,785.50 : 140,908,263.28 = 55,697,245.82 : x
  2. Step 2: Convert to fraction form
    102,106,785.50/140,908,263.28 = 55,697,245.82/x
  3. Step 3: Cross multiply
    102,106,785.50x = 140,908,263.28 × 55,697,245.82
  4. Step 4: Simplify right side
    102,106,785.50x = 7,848,202,177,975,440
  5. Step 5: Solve for x
    x = 7,848,202,177,975,440/102,106,785.50
  6. Step 6: Final answer
    x = 76,862,689.78

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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.