Home / 261,649,266.40-392,473,899.60-89,320,664.80

Finding the Fourth Proportional to 261,649,266.40, 392,473,899.60 and 89,320,664.80

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Solution

The fourth proportional to 261,649,266.40, 392,473,899.60 and 89,320,664.80 is: 133,980,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,649,266.40 : 392,473,899.60 = 89,320,664.80 : x
  2. Step 2: Convert to fraction form
    261,649,266.40/392,473,899.60 = 89,320,664.80/x
  3. Step 3: Cross multiply
    261,649,266.40x = 392,473,899.60 × 89,320,664.80
  4. Step 4: Simplify right side
    261,649,266.40x = 35,056,029,628,920,456
  5. Step 5: Solve for x
    x = 35,056,029,628,920,456/261,649,266.40
  6. Step 6: Final answer
    x = 133,980,997.20

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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.