Home / 242,396,339.40-363,645,636.30-78,621,376.68

Finding the Fourth Proportional to 242,396,339.40, 363,645,636.30 and 78,621,376.68

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Solution

The fourth proportional to 242,396,339.40, 363,645,636.30 and 78,621,376.68 is: 117,948,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,396,339.40 : 363,645,636.30 = 78,621,376.68 : x
  2. Step 2: Convert to fraction form
    242,396,339.40/363,645,636.30 = 78,621,376.68/x
  3. Step 3: Cross multiply
    242,396,339.40x = 363,645,636.30 × 78,621,376.68
  4. Step 4: Simplify right side
    242,396,339.40x = 28,590,320,549,580,584
  5. Step 5: Solve for x
    x = 28,590,320,549,580,584/242,396,339.40
  6. Step 6: Final answer
    x = 117,948,648.15

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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.