Home / 12,355,208.15-18,533,759.45-4,157,890.65

Finding the Fourth Proportional to 12,355,208.15, 18,533,759.45 and 4,157,890.65

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Solution

The fourth proportional to 12,355,208.15, 18,533,759.45 and 4,157,890.65 is: 6,237,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,208.15 : 18,533,759.45 = 4,157,890.65 : x
  2. Step 2: Convert to fraction form
    12,355,208.15/18,533,759.45 = 4,157,890.65/x
  3. Step 3: Cross multiply
    12,355,208.15x = 18,533,759.45 × 4,157,890.65
  4. Step 4: Simplify right side
    12,355,208.15x = 77,061,345,105,714.69
  5. Step 5: Solve for x
    x = 77,061,345,105,714.69/12,355,208.15
  6. Step 6: Final answer
    x = 6,237,154.74

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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.