Home / 397,989,458.10-596,984,187.15-121,640,138.10

Finding the Fourth Proportional to 397,989,458.10, 596,984,187.15 and 121,640,138.10

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Solution

The fourth proportional to 397,989,458.10, 596,984,187.15 and 121,640,138.10 is: 182,460,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,989,458.10 : 596,984,187.15 = 121,640,138.10 : x
  2. Step 2: Convert to fraction form
    397,989,458.10/596,984,187.15 = 121,640,138.10/x
  3. Step 3: Cross multiply
    397,989,458.10x = 596,984,187.15 × 121,640,138.10
  4. Step 4: Simplify right side
    397,989,458.10x = 72,617,238,968,442,240
  5. Step 5: Solve for x
    x = 72,617,238,968,442,240/397,989,458.10
  6. Step 6: Final answer
    x = 182,460,207.15

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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.