Home / 20,300,416.63-28,011,985.68-11,599,152.82

Finding the Fourth Proportional to 20,300,416.63, 28,011,985.68 and 11,599,152.82

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Solution

The fourth proportional to 20,300,416.63, 28,011,985.68 and 11,599,152.82 is: 16,005,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300,416.63 : 28,011,985.68 = 11,599,152.82 : x
  2. Step 2: Convert to fraction form
    20,300,416.63/28,011,985.68 = 11,599,152.82/x
  3. Step 3: Cross multiply
    20,300,416.63x = 28,011,985.68 × 11,599,152.82
  4. Step 4: Simplify right side
    20,300,416.63x = 324,915,302,667,438.50
  5. Step 5: Solve for x
    x = 324,915,302,667,438.50/20,300,416.63
  6. Step 6: Final answer
    x = 16,005,351.45

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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.