Home / 19,077,125.77-28,615,861.64-5,430,266.79

Finding the Fourth Proportional to 19,077,125.77, 28,615,861.64 and 5,430,266.79

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Solution

The fourth proportional to 19,077,125.77, 28,615,861.64 and 5,430,266.79 is: 8,145,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077,125.77 : 28,615,861.64 = 5,430,266.79 : x
  2. Step 2: Convert to fraction form
    19,077,125.77/28,615,861.64 = 5,430,266.79/x
  3. Step 3: Cross multiply
    19,077,125.77x = 28,615,861.64 × 5,430,266.79
  4. Step 4: Simplify right side
    19,077,125.77x = 155,391,763,130,926.94
  5. Step 5: Solve for x
    x = 155,391,763,130,926.94/19,077,125.77
  6. Step 6: Final answer
    x = 8,145,449.42

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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.