Home / 76,889,867.60-115,334,801.40-31,436,555.60

Finding the Fourth Proportional to 76,889,867.60, 115,334,801.40 and 31,436,555.60

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Solution

The fourth proportional to 76,889,867.60, 115,334,801.40 and 31,436,555.60 is: 47,154,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889,867.60 : 115,334,801.40 = 31,436,555.60 : x
  2. Step 2: Convert to fraction form
    76,889,867.60/115,334,801.40 = 31,436,555.60/x
  3. Step 3: Cross multiply
    76,889,867.60x = 115,334,801.40 × 31,436,555.60
  4. Step 4: Simplify right side
    76,889,867.60x = 3,625,728,896,826,058
  5. Step 5: Solve for x
    x = 3,625,728,896,826,058/76,889,867.60
  6. Step 6: Final answer
    x = 47,154,833.40

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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.