Home / 443,387,740.64-611,740,689.60-309,422,093.44

Finding the Fourth Proportional to 443,387,740.64, 611,740,689.60 and 309,422,093.44

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Solution

The fourth proportional to 443,387,740.64, 611,740,689.60 and 309,422,093.44 is: 426,908,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,387,740.64 : 611,740,689.60 = 309,422,093.44 : x
  2. Step 2: Convert to fraction form
    443,387,740.64/611,740,689.60 = 309,422,093.44/x
  3. Step 3: Cross multiply
    443,387,740.64x = 611,740,689.60 × 309,422,093.44
  4. Step 4: Simplify right side
    443,387,740.64x = 189,286,084,818,461,248
  5. Step 5: Solve for x
    x = 189,286,084,818,461,248/443,387,740.64
  6. Step 6: Final answer
    x = 426,908,701.95

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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.