Home / 125,886,206.89-188,620,559.92-76,552,830.65

Finding the Fourth Proportional to 125,886,206.89, 188,620,559.92 and 76,552,830.65

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Solution

The fourth proportional to 125,886,206.89, 188,620,559.92 and 76,552,830.65 is: 114,702,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,886,206.89 : 188,620,559.92 = 76,552,830.65 : x
  2. Step 2: Convert to fraction form
    125,886,206.89/188,620,559.92 = 76,552,830.65/x
  3. Step 3: Cross multiply
    125,886,206.89x = 188,620,559.92 × 76,552,830.65
  4. Step 4: Simplify right side
    125,886,206.89x = 14,439,437,780,663,938
  5. Step 5: Solve for x
    x = 14,439,437,780,663,938/125,886,206.89
  6. Step 6: Final answer
    x = 114,702,302.48

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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.