Home / 20,779,124.08-31,175,413.88-9,995,021.64

Finding the Fourth Proportional to 20,779,124.08, 31,175,413.88 and 9,995,021.64

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Solution

The fourth proportional to 20,779,124.08, 31,175,413.88 and 9,995,021.64 is: 14,995,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,124.08 : 31,175,413.88 = 9,995,021.64 : x
  2. Step 2: Convert to fraction form
    20,779,124.08/31,175,413.88 = 9,995,021.64/x
  3. Step 3: Cross multiply
    20,779,124.08x = 31,175,413.88 × 9,995,021.64
  4. Step 4: Simplify right side
    20,779,124.08x = 311,598,936,366,556.38
  5. Step 5: Solve for x
    x = 311,598,936,366,556.38/20,779,124.08
  6. Step 6: Final answer
    x = 14,995,768.60

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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.