Home / 402,422,010.10-603,632,261.76-126,094,378.48

Finding the Fourth Proportional to 402,422,010.10, 603,632,261.76 and 126,094,378.48

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Solution

The fourth proportional to 402,422,010.10, 603,632,261.76 and 126,094,378.48 is: 189,141,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,422,010.10 : 603,632,261.76 = 126,094,378.48 : x
  2. Step 2: Convert to fraction form
    402,422,010.10/603,632,261.76 = 126,094,378.48/x
  3. Step 3: Cross multiply
    402,422,010.10x = 603,632,261.76 × 126,094,378.48
  4. Step 4: Simplify right side
    402,422,010.10x = 76,114,634,877,103,872
  5. Step 5: Solve for x
    x = 76,114,634,877,103,872/402,422,010.10
  6. Step 6: Final answer
    x = 189,141,331.65

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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.