Home / 28,828,653-39,783,543.78-15,775,911.24

Finding the Fourth Proportional to 28,828,653, 39,783,543.78 and 15,775,911.24

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Solution

The fourth proportional to 28,828,653, 39,783,543.78 and 15,775,911.24 is: 21,770,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828,653 : 39,783,543.78 = 15,775,911.24 : x
  2. Step 2: Convert to fraction form
    28,828,653/39,783,543.78 = 15,775,911.24/x
  3. Step 3: Cross multiply
    28,828,653x = 39,783,543.78 × 15,775,911.24
  4. Step 4: Simplify right side
    28,828,653x = 627,621,655,485,934.12
  5. Step 5: Solve for x
    x = 627,621,655,485,934.12/28,828,653
  6. Step 6: Final answer
    x = 21,770,758.96

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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.