Home / 442,240,388.10-660,769,999.07-426,774,292.20

Finding the Fourth Proportional to 442,240,388.10, 660,769,999.07 and 426,774,292.20

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Solution

The fourth proportional to 442,240,388.10, 660,769,999.07 and 426,774,292.20 is: 637,661,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,240,388.10 : 660,769,999.07 = 426,774,292.20 : x
  2. Step 2: Convert to fraction form
    442,240,388.10/660,769,999.07 = 426,774,292.20/x
  3. Step 3: Cross multiply
    442,240,388.10x = 660,769,999.07 × 426,774,292.20
  4. Step 4: Simplify right side
    442,240,388.10x = 281,999,648,657,960,064
  5. Step 5: Solve for x
    x = 281,999,648,657,960,064/442,240,388.10
  6. Step 6: Final answer
    x = 637,661,453.47

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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.