Home / 20,678,619.60-31,019,095.80-6,302,156.40

Finding the Fourth Proportional to 20,678,619.60, 31,019,095.80 and 6,302,156.40

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Solution

The fourth proportional to 20,678,619.60, 31,019,095.80 and 6,302,156.40 is: 9,453,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,619.60 : 31,019,095.80 = 6,302,156.40 : x
  2. Step 2: Convert to fraction form
    20,678,619.60/31,019,095.80 = 6,302,156.40/x
  3. Step 3: Cross multiply
    20,678,619.60x = 31,019,095.80 × 6,302,156.40
  4. Step 4: Simplify right side
    20,678,619.60x = 195,487,193,118,183.12
  5. Step 5: Solve for x
    x = 195,487,193,118,183.12/20,678,619.60
  6. Step 6: Final answer
    x = 9,453,590.08

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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.