Home / 18,663,980.20-27,995,970.30-5,200,808.20

Finding the Fourth Proportional to 18,663,980.20, 27,995,970.30 and 5,200,808.20

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Solution

The fourth proportional to 18,663,980.20, 27,995,970.30 and 5,200,808.20 is: 7,801,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,980.20 : 27,995,970.30 = 5,200,808.20 : x
  2. Step 2: Convert to fraction form
    18,663,980.20/27,995,970.30 = 5,200,808.20/x
  3. Step 3: Cross multiply
    18,663,980.20x = 27,995,970.30 × 5,200,808.20
  4. Step 4: Simplify right side
    18,663,980.20x = 145,601,671,903,196.47
  5. Step 5: Solve for x
    x = 145,601,671,903,196.47/18,663,980.20
  6. Step 6: Final answer
    x = 7,801,212.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.