Home / 28,685,398.50-39,585,850.74-15,808,342.50

Finding the Fourth Proportional to 28,685,398.50, 39,585,850.74 and 15,808,342.50

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Solution

The fourth proportional to 28,685,398.50, 39,585,850.74 and 15,808,342.50 is: 21,815,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,398.50 : 39,585,850.74 = 15,808,342.50 : x
  2. Step 2: Convert to fraction form
    28,685,398.50/39,585,850.74 = 15,808,342.50/x
  3. Step 3: Cross multiply
    28,685,398.50x = 39,585,850.74 × 15,808,342.50
  4. Step 4: Simplify right side
    28,685,398.50x = 625,786,686,651,798.50
  5. Step 5: Solve for x
    x = 625,786,686,651,798.50/28,685,398.50
  6. Step 6: Final answer
    x = 21,815,513.10

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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.