Home / 13,094,740.80-18,071,650.56-7,938,319.68

Finding the Fourth Proportional to 13,094,740.80, 18,071,650.56 and 7,938,319.68

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Solution

The fourth proportional to 13,094,740.80, 18,071,650.56 and 7,938,319.68 is: 10,955,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094,740.80 : 18,071,650.56 = 7,938,319.68 : x
  2. Step 2: Convert to fraction form
    13,094,740.80/18,071,650.56 = 7,938,319.68/x
  3. Step 3: Cross multiply
    13,094,740.80x = 18,071,650.56 × 7,938,319.68
  4. Step 4: Simplify right side
    13,094,740.80x = 143,458,539,290,531
  5. Step 5: Solve for x
    x = 143,458,539,290,531/13,094,740.80
  6. Step 6: Final answer
    x = 10,955,431.76

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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.