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Finding the Fourth Proportional to 471,479,851.50, 650,911,884.99 and 312,924,990.48

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Solution

The fourth proportional to 471,479,851.50, 650,911,884.99 and 312,924,990.48 is: 432,015,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,479,851.50 : 650,911,884.99 = 312,924,990.48 : x
  2. Step 2: Convert to fraction form
    471,479,851.50/650,911,884.99 = 312,924,990.48/x
  3. Step 3: Cross multiply
    471,479,851.50x = 650,911,884.99 × 312,924,990.48
  4. Step 4: Simplify right side
    471,479,851.50x = 203,686,595,413,814,624
  5. Step 5: Solve for x
    x = 203,686,595,413,814,624/471,479,851.50
  6. Step 6: Final answer
    x = 432,015,482.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.