Home / 28,255,528.09-42,375,703.92-7,780,372.93

Finding the Fourth Proportional to 28,255,528.09, 42,375,703.92 and 7,780,372.93

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Solution

The fourth proportional to 28,255,528.09, 42,375,703.92 and 7,780,372.93 is: 11,668,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255,528.09 : 42,375,703.92 = 7,780,372.93 : x
  2. Step 2: Convert to fraction form
    28,255,528.09/42,375,703.92 = 7,780,372.93/x
  3. Step 3: Cross multiply
    28,255,528.09x = 42,375,703.92 × 7,780,372.93
  4. Step 4: Simplify right side
    28,255,528.09x = 329,698,779,668,862.88
  5. Step 5: Solve for x
    x = 329,698,779,668,862.88/28,255,528.09
  6. Step 6: Final answer
    x = 11,668,469.92

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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.