Home / 13,995,428.19-19,312,998.36-7,800,985.11

Finding the Fourth Proportional to 13,995,428.19, 19,312,998.36 and 7,800,985.11

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Solution

The fourth proportional to 13,995,428.19, 19,312,998.36 and 7,800,985.11 is: 10,764,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995,428.19 : 19,312,998.36 = 7,800,985.11 : x
  2. Step 2: Convert to fraction form
    13,995,428.19/19,312,998.36 = 7,800,985.11/x
  3. Step 3: Cross multiply
    13,995,428.19x = 19,312,998.36 × 7,800,985.11
  4. Step 4: Simplify right side
    13,995,428.19x = 150,660,412,635,814.41
  5. Step 5: Solve for x
    x = 150,660,412,635,814.41/13,995,428.19
  6. Step 6: Final answer
    x = 10,764,973.43

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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.