Home / 76,806,460.42-115,209,807.51-31,368,254.92

Finding the Fourth Proportional to 76,806,460.42, 115,209,807.51 and 31,368,254.92

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Solution

The fourth proportional to 76,806,460.42, 115,209,807.51 and 31,368,254.92 is: 47,052,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,806,460.42 : 115,209,807.51 = 31,368,254.92 : x
  2. Step 2: Convert to fraction form
    76,806,460.42/115,209,807.51 = 31,368,254.92/x
  3. Step 3: Cross multiply
    76,806,460.42x = 115,209,807.51 × 31,368,254.92
  4. Step 4: Simplify right side
    76,806,460.42x = 3,613,930,611,647,327
  5. Step 5: Solve for x
    x = 3,613,930,611,647,327/76,806,460.42
  6. Step 6: Final answer
    x = 47,052,430.12

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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.