Home / 91,090,218.80-136,635,328.20-82,303,727.60

Finding the Fourth Proportional to 91,090,218.80, 136,635,328.20 and 82,303,727.60

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Solution

The fourth proportional to 91,090,218.80, 136,635,328.20 and 82,303,727.60 is: 123,455,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,090,218.80 : 136,635,328.20 = 82,303,727.60 : x
  2. Step 2: Convert to fraction form
    91,090,218.80/136,635,328.20 = 82,303,727.60/x
  3. Step 3: Cross multiply
    91,090,218.80x = 136,635,328.20 × 82,303,727.60
  4. Step 4: Simplify right side
    91,090,218.80x = 11,245,596,832,709,396
  5. Step 5: Solve for x
    x = 11,245,596,832,709,396/91,090,218.80
  6. Step 6: Final answer
    x = 123,455,591.40

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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.