Home / 15,047,875.04-20,766,189.60-8,172,406.40

Finding the Fourth Proportional to 15,047,875.04, 20,766,189.60 and 8,172,406.40

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Solution

The fourth proportional to 15,047,875.04, 20,766,189.60 and 8,172,406.40 is: 11,277,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,875.04 : 20,766,189.60 = 8,172,406.40 : x
  2. Step 2: Convert to fraction form
    15,047,875.04/20,766,189.60 = 8,172,406.40/x
  3. Step 3: Cross multiply
    15,047,875.04x = 20,766,189.60 × 8,172,406.40
  4. Step 4: Simplify right side
    15,047,875.04x = 169,709,740,790,653.47
  5. Step 5: Solve for x
    x = 169,709,740,790,653.47/15,047,875.04
  6. Step 6: Final answer
    x = 11,277,987.11

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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.