Home / 143,510,829,385.38-198,045,024,010.77-77,517,003,809.94

Finding the Fourth Proportional to 143,510,829,385.38, 198,045,024,010.77 and 77,517,003,809.94

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Solution

The fourth proportional to 143,510,829,385.38, 198,045,024,010.77 and 77,517,003,809.94 is: 106,973,508,177.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,510,829,385.38 : 198,045,024,010.77 = 77,517,003,809.94 : x
  2. Step 2: Convert to fraction form
    143,510,829,385.38/198,045,024,010.77 = 77,517,003,809.94/x
  3. Step 3: Cross multiply
    143,510,829,385.38x = 198,045,024,010.77 × 77,517,003,809.94
  4. Step 4: Simplify right side
    143,510,829,385.38x = 15,351,856,880,782,516,682,752
  5. Step 5: Solve for x
    x = 15,351,856,880,782,516,682,752/143,510,829,385.38
  6. Step 6: Final answer
    x = 106,973,508,177.26

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1.5x scale

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.