Home / 30,939,447.60-46,377,678.60-18,153,370.80

Finding the Fourth Proportional to 30,939,447.60, 46,377,678.60 and 18,153,370.80

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Solution

The fourth proportional to 30,939,447.60, 46,377,678.60 and 18,153,370.80 is: 27,211,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939,447.60 : 46,377,678.60 = 18,153,370.80 : x
  2. Step 2: Convert to fraction form
    30,939,447.60/46,377,678.60 = 18,153,370.80/x
  3. Step 3: Cross multiply
    30,939,447.60x = 46,377,678.60 × 18,153,370.80
  4. Step 4: Simplify right side
    30,939,447.60x = 841,911,196,469,025
  5. Step 5: Solve for x
    x = 841,911,196,469,025/30,939,447.60
  6. Step 6: Final answer
    x = 27,211,578.16

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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.