Home / 27,637,120.78-38,139,013.67-15,247,736.39

Finding the Fourth Proportional to 27,637,120.78, 38,139,013.67 and 15,247,736.39

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Solution

The fourth proportional to 27,637,120.78, 38,139,013.67 and 15,247,736.39 is: 21,041,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637,120.78 : 38,139,013.67 = 15,247,736.39 : x
  2. Step 2: Convert to fraction form
    27,637,120.78/38,139,013.67 = 15,247,736.39/x
  3. Step 3: Cross multiply
    27,637,120.78x = 38,139,013.67 × 15,247,736.39
  4. Step 4: Simplify right side
    27,637,120.78x = 581,533,626,462,190.75
  5. Step 5: Solve for x
    x = 581,533,626,462,190.75/27,637,120.78
  6. Step 6: Final answer
    x = 21,041,758.70

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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.