Home / 30,987,152.35-46,486,403.60-12,781,416.09

Finding the Fourth Proportional to 30,987,152.35, 46,486,403.60 and 12,781,416.09

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Solution

The fourth proportional to 30,987,152.35, 46,486,403.60 and 12,781,416.09 is: 19,174,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987,152.35 : 46,486,403.60 = 12,781,416.09 : x
  2. Step 2: Convert to fraction form
    30,987,152.35/46,486,403.60 = 12,781,416.09/x
  3. Step 3: Cross multiply
    30,987,152.35x = 46,486,403.60 × 12,781,416.09
  4. Step 4: Simplify right side
    30,987,152.35x = 594,162,066,855,011.50
  5. Step 5: Solve for x
    x = 594,162,066,855,011.50/30,987,152.35
  6. Step 6: Final answer
    x = 19,174,464.96

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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.