Home / 28,275,782.88-42,416,108.64-7,805,506.08

Finding the Fourth Proportional to 28,275,782.88, 42,416,108.64 and 7,805,506.08

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Solution

The fourth proportional to 28,275,782.88, 42,416,108.64 and 7,805,506.08 is: 11,708,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275,782.88 : 42,416,108.64 = 7,805,506.08 : x
  2. Step 2: Convert to fraction form
    28,275,782.88/42,416,108.64 = 7,805,506.08/x
  3. Step 3: Cross multiply
    28,275,782.88x = 42,416,108.64 × 7,805,506.08
  4. Step 4: Simplify right side
    28,275,782.88x = 331,079,193,879,460.56
  5. Step 5: Solve for x
    x = 331,079,193,879,460.56/28,275,782.88
  6. Step 6: Final answer
    x = 11,708,931.11

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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.