Home / 102,950,739.54-142,071,471.02-55,907,401.79

Finding the Fourth Proportional to 102,950,739.54, 142,071,471.02 and 55,907,401.79

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Solution

The fourth proportional to 102,950,739.54, 142,071,471.02 and 55,907,401.79 is: 77,151,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,950,739.54 : 142,071,471.02 = 55,907,401.79 : x
  2. Step 2: Convert to fraction form
    102,950,739.54/142,071,471.02 = 55,907,401.79/x
  3. Step 3: Cross multiply
    102,950,739.54x = 142,071,471.02 × 55,907,401.79
  4. Step 4: Simplify right side
    102,950,739.54x = 7,942,846,812,221,585
  5. Step 5: Solve for x
    x = 7,942,846,812,221,585/102,950,739.54
  6. Step 6: Final answer
    x = 77,151,916.03

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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.