Home / 128,716,906.70-193,075,360.05-59,629,576.70

Finding the Fourth Proportional to 128,716,906.70, 193,075,360.05 and 59,629,576.70

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Solution

The fourth proportional to 128,716,906.70, 193,075,360.05 and 59,629,576.70 is: 89,444,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,716,906.70 : 193,075,360.05 = 59,629,576.70 : x
  2. Step 2: Convert to fraction form
    128,716,906.70/193,075,360.05 = 59,629,576.70/x
  3. Step 3: Cross multiply
    128,716,906.70x = 193,075,360.05 × 59,629,576.70
  4. Step 4: Simplify right side
    128,716,906.70x = 11,513,001,990,981,592
  5. Step 5: Solve for x
    x = 11,513,001,990,981,592/128,716,906.70
  6. Step 6: Final answer
    x = 89,444,365.05

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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.