Home / 129,989,868.32-179,084,531.16-90,769,522.52

Finding the Fourth Proportional to 129,989,868.32, 179,084,531.16 and 90,769,522.52

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Solution

The fourth proportional to 129,989,868.32, 179,084,531.16 and 90,769,522.52 is: 125,051,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,989,868.32 : 179,084,531.16 = 90,769,522.52 : x
  2. Step 2: Convert to fraction form
    129,989,868.32/179,084,531.16 = 90,769,522.52/x
  3. Step 3: Cross multiply
    129,989,868.32x = 179,084,531.16 × 90,769,522.52
  4. Step 4: Simplify right side
    129,989,868.32x = 16,255,417,384,111,260
  5. Step 5: Solve for x
    x = 16,255,417,384,111,260/129,989,868.32
  6. Step 6: Final answer
    x = 125,051,418.19

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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.