Home / 442,240,389.10-660,770,000.56-426,774,293.20

Finding the Fourth Proportional to 442,240,389.10, 660,770,000.56 and 426,774,293.20

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Solution

The fourth proportional to 442,240,389.10, 660,770,000.56 and 426,774,293.20 is: 637,661,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,240,389.10 : 660,770,000.56 = 426,774,293.20 : x
  2. Step 2: Convert to fraction form
    442,240,389.10/660,770,000.56 = 426,774,293.20/x
  3. Step 3: Cross multiply
    442,240,389.10x = 660,770,000.56 × 426,774,293.20
  4. Step 4: Simplify right side
    442,240,389.10x = 281,999,649,956,757,568
  5. Step 5: Solve for x
    x = 281,999,649,956,757,568/442,240,389.10
  6. Step 6: Final answer
    x = 637,661,454.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.