Home / 67,230,328.16-92,778,045.02-38,978,191.60

Finding the Fourth Proportional to 67,230,328.16, 92,778,045.02 and 38,978,191.60

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Solution

The fourth proportional to 67,230,328.16, 92,778,045.02 and 38,978,191.60 is: 53,790,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,230,328.16 : 92,778,045.02 = 38,978,191.60 : x
  2. Step 2: Convert to fraction form
    67,230,328.16/92,778,045.02 = 38,978,191.60/x
  3. Step 3: Cross multiply
    67,230,328.16x = 92,778,045.02 × 38,978,191.60
  4. Step 4: Simplify right side
    67,230,328.16x = 3,616,320,415,062,986
  5. Step 5: Solve for x
    x = 3,616,320,415,062,986/67,230,328.16
  6. Step 6: Final answer
    x = 53,790,015.82

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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.