Home / 12,970,535-17,897,509.67-7,388,928.27

Finding the Fourth Proportional to 12,970,535, 17,897,509.67 and 7,388,928.27

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Solution

The fourth proportional to 12,970,535, 17,897,509.67 and 7,388,928.27 is: 10,195,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970,535 : 17,897,509.67 = 7,388,928.27 : x
  2. Step 2: Convert to fraction form
    12,970,535/17,897,509.67 = 7,388,928.27/x
  3. Step 3: Cross multiply
    12,970,535x = 17,897,509.67 × 7,388,928.27
  4. Step 4: Simplify right side
    12,970,535x = 132,243,415,163,261.38
  5. Step 5: Solve for x
    x = 132,243,415,163,261.38/12,970,535
  6. Step 6: Final answer
    x = 10,195,679.30

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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.