Home / 13,166,055.20-18,161,837.52-7,658,810.40

Finding the Fourth Proportional to 13,166,055.20, 18,161,837.52 and 7,658,810.40

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Solution

The fourth proportional to 13,166,055.20, 18,161,837.52 and 7,658,810.40 is: 10,564,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,055.20 : 18,161,837.52 = 7,658,810.40 : x
  2. Step 2: Convert to fraction form
    13,166,055.20/18,161,837.52 = 7,658,810.40/x
  3. Step 3: Cross multiply
    13,166,055.20x = 18,161,837.52 × 7,658,810.40
  4. Step 4: Simplify right side
    13,166,055.20x = 139,098,070,081,286.22
  5. Step 5: Solve for x
    x = 139,098,070,081,286.22/13,166,055.20
  6. Step 6: Final answer
    x = 10,564,901.03

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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.