Home / 8,128,564.56-12,167,437.02-5,246,078.40

Finding the Fourth Proportional to 8,128,564.56, 12,167,437.02 and 5,246,078.40

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Solution

The fourth proportional to 8,128,564.56, 12,167,437.02 and 5,246,078.40 is: 7,852,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,564.56 : 12,167,437.02 = 5,246,078.40 : x
  2. Step 2: Convert to fraction form
    8,128,564.56/12,167,437.02 = 5,246,078.40/x
  3. Step 3: Cross multiply
    8,128,564.56x = 12,167,437.02 × 5,246,078.40
  4. Step 4: Simplify right side
    8,128,564.56x = 63,831,328,533,982.37
  5. Step 5: Solve for x
    x = 63,831,328,533,982.37/8,128,564.56
  6. Step 6: Final answer
    x = 7,852,718.41

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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.