Home / 138,810,762.27-208,216,130.76-61,087,666.23

Finding the Fourth Proportional to 138,810,762.27, 208,216,130.76 and 61,087,666.23

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Solution

The fourth proportional to 138,810,762.27, 208,216,130.76 and 61,087,666.23 is: 91,631,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,810,762.27 : 208,216,130.76 = 61,087,666.23 : x
  2. Step 2: Convert to fraction form
    138,810,762.27/208,216,130.76 = 61,087,666.23/x
  3. Step 3: Cross multiply
    138,810,762.27x = 208,216,130.76 × 61,087,666.23
  4. Step 4: Simplify right side
    138,810,762.27x = 12,719,437,499,568,914
  5. Step 5: Solve for x
    x = 12,719,437,499,568,914/138,810,762.27
  6. Step 6: Final answer
    x = 91,631,493.78

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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.