Home / 19,077,122.70-28,615,857.04-5,430,263.72

Finding the Fourth Proportional to 19,077,122.70, 28,615,857.04 and 5,430,263.72

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Solution

The fourth proportional to 19,077,122.70, 28,615,857.04 and 5,430,263.72 is: 8,145,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077,122.70 : 28,615,857.04 = 5,430,263.72 : x
  2. Step 2: Convert to fraction form
    19,077,122.70/28,615,857.04 = 5,430,263.72/x
  3. Step 3: Cross multiply
    19,077,122.70x = 28,615,857.04 × 5,430,263.72
  4. Step 4: Simplify right side
    19,077,122.70x = 155,391,650,134,181.91
  5. Step 5: Solve for x
    x = 155,391,650,134,181.91/19,077,122.70
  6. Step 6: Final answer
    x = 8,145,444.81

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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.