Home / 287,472,492.10-431,208,738.15-105,682,053.70

Finding the Fourth Proportional to 287,472,492.10, 431,208,738.15 and 105,682,053.70

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Solution

The fourth proportional to 287,472,492.10, 431,208,738.15 and 105,682,053.70 is: 158,523,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,472,492.10 : 431,208,738.15 = 105,682,053.70 : x
  2. Step 2: Convert to fraction form
    287,472,492.10/431,208,738.15 = 105,682,053.70/x
  3. Step 3: Cross multiply
    287,472,492.10x = 431,208,738.15 × 105,682,053.70
  4. Step 4: Simplify right side
    287,472,492.10x = 45,571,025,021,077,536
  5. Step 5: Solve for x
    x = 45,571,025,021,077,536/287,472,492.10
  6. Step 6: Final answer
    x = 158,523,080.55

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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.