Home / 20,064,966.08-30,089,747.28-8,543,128.40

Finding the Fourth Proportional to 20,064,966.08, 30,089,747.28 and 8,543,128.40

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Solution

The fourth proportional to 20,064,966.08, 30,089,747.28 and 8,543,128.40 is: 12,811,413.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064,966.08 : 30,089,747.28 = 8,543,128.40 : x
  2. Step 2: Convert to fraction form
    20,064,966.08/30,089,747.28 = 8,543,128.40/x
  3. Step 3: Cross multiply
    20,064,966.08x = 30,089,747.28 × 8,543,128.40
  4. Step 4: Simplify right side
    20,064,966.08x = 257,060,574,536,590.78
  5. Step 5: Solve for x
    x = 257,060,574,536,590.78/20,064,966.08
  6. Step 6: Final answer
    x = 12,811,413.36

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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.