Home / 91,399,045.89-136,148,617.97-86,448,574.56

Finding the Fourth Proportional to 91,399,045.89, 136,148,617.97 and 86,448,574.56

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Solution

The fourth proportional to 91,399,045.89, 136,148,617.97 and 86,448,574.56 is: 128,774,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,399,045.89 : 136,148,617.97 = 86,448,574.56 : x
  2. Step 2: Convert to fraction form
    91,399,045.89/136,148,617.97 = 86,448,574.56/x
  3. Step 3: Cross multiply
    91,399,045.89x = 136,148,617.97 × 86,448,574.56
  4. Step 4: Simplify right side
    91,399,045.89x = 11,769,853,952,036,622
  5. Step 5: Solve for x
    x = 11,769,853,952,036,622/91,399,045.89
  6. Step 6: Final answer
    x = 128,774,363.42

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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.