Home / 20,406,004.93-28,158,202.96-12,564,271.81

Finding the Fourth Proportional to 20,406,004.93, 28,158,202.96 and 12,564,271.81

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Solution

The fourth proportional to 20,406,004.93, 28,158,202.96 and 12,564,271.81 is: 17,337,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406,004.93 : 28,158,202.96 = 12,564,271.81 : x
  2. Step 2: Convert to fraction form
    20,406,004.93/28,158,202.96 = 12,564,271.81/x
  3. Step 3: Cross multiply
    20,406,004.93x = 28,158,202.96 × 12,564,271.81
  4. Step 4: Simplify right side
    20,406,004.93x = 353,787,315,670,586.56
  5. Step 5: Solve for x
    x = 353,787,315,670,586.56/20,406,004.93
  6. Step 6: Final answer
    x = 17,337,412.05

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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.