Home / 20,069,829.79-30,102,176.65-6,421,834.42

Finding the Fourth Proportional to 20,069,829.79, 30,102,176.65 and 6,421,834.42

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Solution

The fourth proportional to 20,069,829.79, 30,102,176.65 and 6,421,834.42 is: 9,631,929.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069,829.79 : 30,102,176.65 = 6,421,834.42 : x
  2. Step 2: Convert to fraction form
    20,069,829.79/30,102,176.65 = 6,421,834.42/x
  3. Step 3: Cross multiply
    20,069,829.79x = 30,102,176.65 × 6,421,834.42
  4. Step 4: Simplify right side
    20,069,829.79x = 193,311,194,036,580.28
  5. Step 5: Solve for x
    x = 193,311,194,036,580.28/20,069,829.79
  6. Step 6: Final answer
    x = 9,631,929.92

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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.