Home / 103,968,589.20-143,471,197.80-56,916,642.48

Finding the Fourth Proportional to 103,968,589.20, 143,471,197.80 and 56,916,642.48

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Solution

The fourth proportional to 103,968,589.20, 143,471,197.80 and 56,916,642.48 is: 78,541,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,968,589.20 : 143,471,197.80 = 56,916,642.48 : x
  2. Step 2: Convert to fraction form
    103,968,589.20/143,471,197.80 = 56,916,642.48/x
  3. Step 3: Cross multiply
    103,968,589.20x = 143,471,197.80 × 56,916,642.48
  4. Step 4: Simplify right side
    103,968,589.20x = 8,165,898,871,359,963
  5. Step 5: Solve for x
    x = 8,165,898,871,359,963/103,968,589.20
  6. Step 6: Final answer
    x = 78,541,980.17

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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.