Home / 77,206,082.07-115,808,870.49-28,021,869.81

Finding the Fourth Proportional to 77,206,082.07, 115,808,870.49 and 28,021,869.81

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Solution

The fourth proportional to 77,206,082.07, 115,808,870.49 and 28,021,869.81 is: 42,032,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,206,082.07 : 115,808,870.49 = 28,021,869.81 : x
  2. Step 2: Convert to fraction form
    77,206,082.07/115,808,870.49 = 28,021,869.81/x
  3. Step 3: Cross multiply
    77,206,082.07x = 115,808,870.49 × 28,021,869.81
  4. Step 4: Simplify right side
    77,206,082.07x = 3,245,181,091,713,930.50
  5. Step 5: Solve for x
    x = 3,245,181,091,713,930.50/77,206,082.07
  6. Step 6: Final answer
    x = 42,032,713.03

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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.