Home / 13,417,772.22-18,516,020.40-8,199,505.98

Finding the Fourth Proportional to 13,417,772.22, 18,516,020.40 and 8,199,505.98

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Solution

The fourth proportional to 13,417,772.22, 18,516,020.40 and 8,199,505.98 is: 11,315,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417,772.22 : 18,516,020.40 = 8,199,505.98 : x
  2. Step 2: Convert to fraction form
    13,417,772.22/18,516,020.40 = 8,199,505.98/x
  3. Step 3: Cross multiply
    13,417,772.22x = 18,516,020.40 × 8,199,505.98
  4. Step 4: Simplify right side
    13,417,772.22x = 151,822,219,995,602
  5. Step 5: Solve for x
    x = 151,822,219,995,602/13,417,772.22
  6. Step 6: Final answer
    x = 11,315,009.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.