Home / 155,989,960.32-215,490,371.89-124,586,779.53

Finding the Fourth Proportional to 155,989,960.32, 215,490,371.89 and 124,586,779.53

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Solution

The fourth proportional to 155,989,960.32, 215,490,371.89 and 124,586,779.53 is: 172,108,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,989,960.32 : 215,490,371.89 = 124,586,779.53 : x
  2. Step 2: Convert to fraction form
    155,989,960.32/215,490,371.89 = 124,586,779.53/x
  3. Step 3: Cross multiply
    155,989,960.32x = 215,490,371.89 × 124,586,779.53
  4. Step 4: Simplify right side
    155,989,960.32x = 26,847,251,453,497,136
  5. Step 5: Solve for x
    x = 26,847,251,453,497,136/155,989,960.32
  6. Step 6: Final answer
    x = 172,108,842.12

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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.