Home / 127,568,734.80-191,197,644.75-66,124,018.46

Finding the Fourth Proportional to 127,568,734.80, 191,197,644.75 and 66,124,018.46

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Solution

The fourth proportional to 127,568,734.80, 191,197,644.75 and 66,124,018.46 is: 99,105,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,568,734.80 : 191,197,644.75 = 66,124,018.46 : x
  2. Step 2: Convert to fraction form
    127,568,734.80/191,197,644.75 = 66,124,018.46/x
  3. Step 3: Cross multiply
    127,568,734.80x = 191,197,644.75 × 66,124,018.46
  4. Step 4: Simplify right side
    127,568,734.80x = 12,642,756,590,360,028
  5. Step 5: Solve for x
    x = 12,642,756,590,360,028/127,568,734.80
  6. Step 6: Final answer
    x = 99,105,447.82

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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.