Home / 13,147,280.67-18,143,209-7,346,066.95

Finding the Fourth Proportional to 13,147,280.67, 18,143,209 and 7,346,066.95

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Solution

The fourth proportional to 13,147,280.67, 18,143,209 and 7,346,066.95 is: 10,137,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,280.67 : 18,143,209 = 7,346,066.95 : x
  2. Step 2: Convert to fraction form
    13,147,280.67/18,143,209 = 7,346,066.95/x
  3. Step 3: Cross multiply
    13,147,280.67x = 18,143,209 × 7,346,066.95
  4. Step 4: Simplify right side
    13,147,280.67x = 133,281,228,001,842.55
  5. Step 5: Solve for x
    x = 133,281,228,001,842.55/13,147,280.67
  6. Step 6: Final answer
    x = 10,137,550.98

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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.