Home / 13,118,151.03-18,103,001.09-7,316,928.20

Finding the Fourth Proportional to 13,118,151.03, 18,103,001.09 and 7,316,928.20

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Solution

The fourth proportional to 13,118,151.03, 18,103,001.09 and 7,316,928.20 is: 10,097,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118,151.03 : 18,103,001.09 = 7,316,928.20 : x
  2. Step 2: Convert to fraction form
    13,118,151.03/18,103,001.09 = 7,316,928.20/x
  3. Step 3: Cross multiply
    13,118,151.03x = 18,103,001.09 × 7,316,928.20
  4. Step 4: Simplify right side
    13,118,151.03x = 132,458,359,052,952.11
  5. Step 5: Solve for x
    x = 132,458,359,052,952.11/13,118,151.03
  6. Step 6: Final answer
    x = 10,097,334.51

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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.