Home / 19,077,121.30-28,615,854.94-5,430,262.32

Finding the Fourth Proportional to 19,077,121.30, 28,615,854.94 and 5,430,262.32

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Solution

The fourth proportional to 19,077,121.30, 28,615,854.94 and 5,430,262.32 is: 8,145,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077,121.30 : 28,615,854.94 = 5,430,262.32 : x
  2. Step 2: Convert to fraction form
    19,077,121.30/28,615,854.94 = 5,430,262.32/x
  3. Step 3: Cross multiply
    19,077,121.30x = 28,615,854.94 × 5,430,262.32
  4. Step 4: Simplify right side
    19,077,121.30x = 155,391,598,852,237.44
  5. Step 5: Solve for x
    x = 155,391,598,852,237.44/19,077,121.30
  6. Step 6: Final answer
    x = 8,145,442.72

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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.