Home / 13,290,699-18,341,172-7,179,127.56

Finding the Fourth Proportional to 13,290,699, 18,341,172 and 7,179,127.56

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Solution

The fourth proportional to 13,290,699, 18,341,172 and 7,179,127.56 is: 9,907,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,699 : 18,341,172 = 7,179,127.56 : x
  2. Step 2: Convert to fraction form
    13,290,699/18,341,172 = 7,179,127.56/x
  3. Step 3: Cross multiply
    13,290,699x = 18,341,172 × 7,179,127.56
  4. Step 4: Simplify right side
    13,290,699x = 131,673,613,387,900.31
  5. Step 5: Solve for x
    x = 131,673,613,387,900.31/13,290,699
  6. Step 6: Final answer
    x = 9,907,200.02

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1.5x scale

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.