Home / 19,077,130.78-28,615,869.14-5,430,271.80

Finding the Fourth Proportional to 19,077,130.78, 28,615,869.14 and 5,430,271.80

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Solution

The fourth proportional to 19,077,130.78, 28,615,869.14 and 5,430,271.80 is: 8,145,456.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077,130.78 : 28,615,869.14 = 5,430,271.80 : x
  2. Step 2: Convert to fraction form
    19,077,130.78/28,615,869.14 = 5,430,271.80/x
  3. Step 3: Cross multiply
    19,077,130.78x = 28,615,869.14 × 5,430,271.80
  4. Step 4: Simplify right side
    19,077,130.78x = 155,391,947,223,432.25
  5. Step 5: Solve for x
    x = 155,391,947,223,432.25/19,077,130.78
  6. Step 6: Final answer
    x = 8,145,456.94

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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.