Home / 68,953,371.20-103,430,056.80-30,574,145.60

Finding the Fourth Proportional to 68,953,371.20, 103,430,056.80 and 30,574,145.60

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Solution

The fourth proportional to 68,953,371.20, 103,430,056.80 and 30,574,145.60 is: 45,861,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953,371.20 : 103,430,056.80 = 30,574,145.60 : x
  2. Step 2: Convert to fraction form
    68,953,371.20/103,430,056.80 = 30,574,145.60/x
  3. Step 3: Cross multiply
    68,953,371.20x = 103,430,056.80 × 30,574,145.60
  4. Step 4: Simplify right side
    68,953,371.20x = 3,162,285,616,019,470
  5. Step 5: Solve for x
    x = 3,162,285,616,019,470/68,953,371.20
  6. Step 6: Final answer
    x = 45,861,218.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.