Home / 162,157,819.82-243,236,729.72-40,989,271.82

Finding the Fourth Proportional to 162,157,819.82, 243,236,729.72 and 40,989,271.82

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Solution

The fourth proportional to 162,157,819.82, 243,236,729.72 and 40,989,271.82 is: 61,483,907.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,157,819.82 : 243,236,729.72 = 40,989,271.82 : x
  2. Step 2: Convert to fraction form
    162,157,819.82/243,236,729.72 = 40,989,271.82/x
  3. Step 3: Cross multiply
    162,157,819.82x = 243,236,729.72 × 40,989,271.82
  4. Step 4: Simplify right side
    162,157,819.82x = 9,970,096,429,987,242
  5. Step 5: Solve for x
    x = 9,970,096,429,987,242/162,157,819.82
  6. Step 6: Final answer
    x = 61,483,907.72

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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.