Home / 28,339,167.96-42,508,868.58-7,870,500.36

Finding the Fourth Proportional to 28,339,167.96, 42,508,868.58 and 7,870,500.36

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Solution

The fourth proportional to 28,339,167.96, 42,508,868.58 and 7,870,500.36 is: 11,805,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,167.96 : 42,508,868.58 = 7,870,500.36 : x
  2. Step 2: Convert to fraction form
    28,339,167.96/42,508,868.58 = 7,870,500.36/x
  3. Step 3: Cross multiply
    28,339,167.96x = 42,508,868.58 × 7,870,500.36
  4. Step 4: Simplify right side
    28,339,167.96x = 334,566,065,462,082.69
  5. Step 5: Solve for x
    x = 334,566,065,462,082.69/28,339,167.96
  6. Step 6: Final answer
    x = 11,805,782.93

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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.