Home / 12,997,768.51-17,937,480.90-7,196,550.21

Finding the Fourth Proportional to 12,997,768.51, 17,937,480.90 and 7,196,550.21

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Solution

The fourth proportional to 12,997,768.51, 17,937,480.90 and 7,196,550.21 is: 9,931,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,768.51 : 17,937,480.90 = 7,196,550.21 : x
  2. Step 2: Convert to fraction form
    12,997,768.51/17,937,480.90 = 7,196,550.21/x
  3. Step 3: Cross multiply
    12,997,768.51x = 17,937,480.90 × 7,196,550.21
  4. Step 4: Simplify right side
    12,997,768.51x = 129,087,981,937,765.98
  5. Step 5: Solve for x
    x = 129,087,981,937,765.98/12,997,768.51
  6. Step 6: Final answer
    x = 9,931,549.55

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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.