Home / 13,053,400.36-18,012,636.38-7,547,128.49

Finding the Fourth Proportional to 13,053,400.36, 18,012,636.38 and 7,547,128.49

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Solution

The fourth proportional to 13,053,400.36, 18,012,636.38 and 7,547,128.49 is: 10,414,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053,400.36 : 18,012,636.38 = 7,547,128.49 : x
  2. Step 2: Convert to fraction form
    13,053,400.36/18,012,636.38 = 7,547,128.49/x
  3. Step 3: Cross multiply
    13,053,400.36x = 18,012,636.38 × 7,547,128.49
  4. Step 4: Simplify right side
    13,053,400.36x = 135,943,681,267,407.88
  5. Step 5: Solve for x
    x = 135,943,681,267,407.88/13,053,400.36
  6. Step 6: Final answer
    x = 10,414,426.70

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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.