Home / 104,005,371.20-156,008,056.80-78,307,246.40

Finding the Fourth Proportional to 104,005,371.20, 156,008,056.80 and 78,307,246.40

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Solution

The fourth proportional to 104,005,371.20, 156,008,056.80 and 78,307,246.40 is: 117,460,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,005,371.20 : 156,008,056.80 = 78,307,246.40 : x
  2. Step 2: Convert to fraction form
    104,005,371.20/156,008,056.80 = 78,307,246.40/x
  3. Step 3: Cross multiply
    104,005,371.20x = 156,008,056.80 × 78,307,246.40
  4. Step 4: Simplify right side
    104,005,371.20x = 12,216,561,344,222,798
  5. Step 5: Solve for x
    x = 12,216,561,344,222,798/104,005,371.20
  6. Step 6: Final answer
    x = 117,460,869.60

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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.