Home / 258,158,934.95-387,314,099.96-83,278,465.20

Finding the Fourth Proportional to 258,158,934.95, 387,314,099.96 and 83,278,465.20

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Solution

The fourth proportional to 258,158,934.95, 387,314,099.96 and 83,278,465.20 is: 124,942,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,158,934.95 : 387,314,099.96 = 83,278,465.20 : x
  2. Step 2: Convert to fraction form
    258,158,934.95/387,314,099.96 = 83,278,465.20/x
  3. Step 3: Cross multiply
    258,158,934.95x = 387,314,099.96 × 83,278,465.20
  4. Step 4: Simplify right side
    258,158,934.95x = 32,254,923,794,571,788
  5. Step 5: Solve for x
    x = 32,254,923,794,571,788/258,158,934.95
  6. Step 6: Final answer
    x = 124,942,116.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.