Home / 65,818,775.40-98,728,163.10-49,556,680.80

Finding the Fourth Proportional to 65,818,775.40, 98,728,163.10 and 49,556,680.80

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Solution

The fourth proportional to 65,818,775.40, 98,728,163.10 and 49,556,680.80 is: 74,335,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818,775.40 : 98,728,163.10 = 49,556,680.80 : x
  2. Step 2: Convert to fraction form
    65,818,775.40/98,728,163.10 = 49,556,680.80/x
  3. Step 3: Cross multiply
    65,818,775.40x = 98,728,163.10 × 49,556,680.80
  4. Step 4: Simplify right side
    65,818,775.40x = 4,892,640,064,717,038
  5. Step 5: Solve for x
    x = 4,892,640,064,717,038/65,818,775.40
  6. Step 6: Final answer
    x = 74,335,021.20

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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.