Home / 242,396,344.15-363,645,643.43-78,621,381.43

Finding the Fourth Proportional to 242,396,344.15, 363,645,643.43 and 78,621,381.43

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Solution

The fourth proportional to 242,396,344.15, 363,645,643.43 and 78,621,381.43 is: 117,948,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,396,344.15 : 363,645,643.43 = 78,621,381.43 : x
  2. Step 2: Convert to fraction form
    242,396,344.15/363,645,643.43 = 78,621,381.43/x
  3. Step 3: Cross multiply
    242,396,344.15x = 363,645,643.43 × 78,621,381.43
  4. Step 4: Simplify right side
    242,396,344.15x = 28,590,322,837,467,808
  5. Step 5: Solve for x
    x = 28,590,322,837,467,808/242,396,344.15
  6. Step 6: Final answer
    x = 117,948,655.28

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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.