Home / 122,284,950.04-168,688,912.26-72,690,047.56

Finding the Fourth Proportional to 122,284,950.04, 168,688,912.26 and 72,690,047.56

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Solution

The fourth proportional to 122,284,950.04, 168,688,912.26 and 72,690,047.56 is: 100,274,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,284,950.04 : 168,688,912.26 = 72,690,047.56 : x
  2. Step 2: Convert to fraction form
    122,284,950.04/168,688,912.26 = 72,690,047.56/x
  3. Step 3: Cross multiply
    122,284,950.04x = 168,688,912.26 × 72,690,047.56
  4. Step 4: Simplify right side
    122,284,950.04x = 12,262,005,055,024,066
  5. Step 5: Solve for x
    x = 12,262,005,055,024,066/122,284,950.04
  6. Step 6: Final answer
    x = 100,274,032.50

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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.