Home / 253,353,704.58-380,066,657.21-78,490,483.48

Finding the Fourth Proportional to 253,353,704.58, 380,066,657.21 and 78,490,483.48

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Solution

The fourth proportional to 253,353,704.58, 380,066,657.21 and 78,490,483.48 is: 117,746,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,353,704.58 : 380,066,657.21 = 78,490,483.48 : x
  2. Step 2: Convert to fraction form
    253,353,704.58/380,066,657.21 = 78,490,483.48/x
  3. Step 3: Cross multiply
    253,353,704.58x = 380,066,657.21 × 78,490,483.48
  4. Step 4: Simplify right side
    253,353,704.58x = 29,831,615,679,040,328
  5. Step 5: Solve for x
    x = 29,831,615,679,040,328/253,353,704.58
  6. Step 6: Final answer
    x = 117,746,909.32

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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.