Home / 28,262,819.30-39,011,148.56-16,505,259.21

Finding the Fourth Proportional to 28,262,819.30, 39,011,148.56 and 16,505,259.21

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Solution

The fourth proportional to 28,262,819.30, 39,011,148.56 and 16,505,259.21 is: 22,782,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262,819.30 : 39,011,148.56 = 16,505,259.21 : x
  2. Step 2: Convert to fraction form
    28,262,819.30/39,011,148.56 = 16,505,259.21/x
  3. Step 3: Cross multiply
    28,262,819.30x = 39,011,148.56 × 16,505,259.21
  4. Step 4: Simplify right side
    28,262,819.30x = 643,889,119,103,881.38
  5. Step 5: Solve for x
    x = 643,889,119,103,881.38/28,262,819.30
  6. Step 6: Final answer
    x = 22,782,197.08

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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.