Home / 30,987,416.76-46,486,799.18-12,781,680.18

Finding the Fourth Proportional to 30,987,416.76, 46,486,799.18 and 12,781,680.18

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Solution

The fourth proportional to 30,987,416.76, 46,486,799.18 and 12,781,680.18 is: 19,174,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987,416.76 : 46,486,799.18 = 12,781,680.18 : x
  2. Step 2: Convert to fraction form
    30,987,416.76/46,486,799.18 = 12,781,680.18/x
  3. Step 3: Cross multiply
    30,987,416.76x = 46,486,799.18 × 12,781,680.18
  4. Step 4: Simplify right side
    30,987,416.76x = 594,179,399,710,646.25
  5. Step 5: Solve for x
    x = 594,179,399,710,646.25/30,987,416.76
  6. Step 6: Final answer
    x = 19,174,860.70

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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.