Home / 15,580,130.78-21,500,589.59-8,704,612.84

Finding the Fourth Proportional to 15,580,130.78, 21,500,589.59 and 8,704,612.84

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Solution

The fourth proportional to 15,580,130.78, 21,500,589.59 and 8,704,612.84 is: 12,012,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580,130.78 : 21,500,589.59 = 8,704,612.84 : x
  2. Step 2: Convert to fraction form
    15,580,130.78/21,500,589.59 = 8,704,612.84/x
  3. Step 3: Cross multiply
    15,580,130.78x = 21,500,589.59 × 8,704,612.84
  4. Step 4: Simplify right side
    15,580,130.78x = 187,154,308,212,684.34
  5. Step 5: Solve for x
    x = 187,154,308,212,684.34/15,580,130.78
  6. Step 6: Final answer
    x = 12,012,370.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.