Home / 78,884,190.60-118,270,298.70-30,343,288.20

Finding the Fourth Proportional to 78,884,190.60, 118,270,298.70 and 30,343,288.20

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Solution

The fourth proportional to 78,884,190.60, 118,270,298.70 and 30,343,288.20 is: 45,493,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,884,190.60 : 118,270,298.70 = 30,343,288.20 : x
  2. Step 2: Convert to fraction form
    78,884,190.60/118,270,298.70 = 30,343,288.20/x
  3. Step 3: Cross multiply
    78,884,190.60x = 118,270,298.70 × 30,343,288.20
  4. Step 4: Simplify right side
    78,884,190.60x = 3,588,709,758,954,185.50
  5. Step 5: Solve for x
    x = 3,588,709,758,954,185.50/78,884,190.60
  6. Step 6: Final answer
    x = 45,493,396.48

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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.