Home / 13,206,210.10-19,785,695.55-8,151,615.70

Finding the Fourth Proportional to 13,206,210.10, 19,785,695.55 and 8,151,615.70

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Solution

The fourth proportional to 13,206,210.10, 19,785,695.55 and 8,151,615.70 is: 12,212,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,210.10 : 19,785,695.55 = 8,151,615.70 : x
  2. Step 2: Convert to fraction form
    13,206,210.10/19,785,695.55 = 8,151,615.70/x
  3. Step 3: Cross multiply
    13,206,210.10x = 19,785,695.55 × 8,151,615.70
  4. Step 4: Simplify right side
    13,206,210.10x = 161,285,386,480,800.16
  5. Step 5: Solve for x
    x = 161,285,386,480,800.16/13,206,210.10
  6. Step 6: Final answer
    x = 12,212,844.20

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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.