Home / 9,341,892.61-12,892,129.90-5,421,345.19

Finding the Fourth Proportional to 9,341,892.61, 12,892,129.90 and 5,421,345.19

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Solution

The fourth proportional to 9,341,892.61, 12,892,129.90 and 5,421,345.19 is: 7,481,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341,892.61 : 12,892,129.90 = 5,421,345.19 : x
  2. Step 2: Convert to fraction form
    9,341,892.61/12,892,129.90 = 5,421,345.19/x
  3. Step 3: Cross multiply
    9,341,892.61x = 12,892,129.90 × 5,421,345.19
  4. Step 4: Simplify right side
    9,341,892.61x = 69,892,686,376,436.50
  5. Step 5: Solve for x
    x = 69,892,686,376,436.50/9,341,892.61
  6. Step 6: Final answer
    x = 7,481,640.96

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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.