Home / 91,172,840.80-136,643,139.60-37,259,240.80

Finding the Fourth Proportional to 91,172,840.80, 136,643,139.60 and 37,259,240.80

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Solution

The fourth proportional to 91,172,840.80, 136,643,139.60 and 37,259,240.80 is: 55,841,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,172,840.80 : 136,643,139.60 = 37,259,240.80 : x
  2. Step 2: Convert to fraction form
    91,172,840.80/136,643,139.60 = 37,259,240.80/x
  3. Step 3: Cross multiply
    91,172,840.80x = 136,643,139.60 × 37,259,240.80
  4. Step 4: Simplify right side
    91,172,840.80x = 5,091,219,642,024,415
  5. Step 5: Solve for x
    x = 5,091,219,642,024,415/91,172,840.80
  6. Step 6: Final answer
    x = 55,841,406.25

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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.