Home / 30,858,210.72-46,290,426.48-8,140,678.56

Finding the Fourth Proportional to 30,858,210.72, 46,290,426.48 and 8,140,678.56

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Solution

The fourth proportional to 30,858,210.72, 46,290,426.48 and 8,140,678.56 is: 12,211,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,858,210.72 : 46,290,426.48 = 8,140,678.56 : x
  2. Step 2: Convert to fraction form
    30,858,210.72/46,290,426.48 = 8,140,678.56/x
  3. Step 3: Cross multiply
    30,858,210.72x = 46,290,426.48 × 8,140,678.56
  4. Step 4: Simplify right side
    30,858,210.72x = 376,835,482,378,992.25
  5. Step 5: Solve for x
    x = 376,835,482,378,992.25/30,858,210.72
  6. Step 6: Final answer
    x = 12,211,838.39

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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.