Home / 426,492,023.51-639,738,035.28-349,007,925.71

Finding the Fourth Proportional to 426,492,023.51, 639,738,035.28 and 349,007,925.71

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Solution

The fourth proportional to 426,492,023.51, 639,738,035.28 and 349,007,925.71 is: 523,511,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,023.51 : 639,738,035.28 = 349,007,925.71 : x
  2. Step 2: Convert to fraction form
    426,492,023.51/639,738,035.28 = 349,007,925.71/x
  3. Step 3: Cross multiply
    426,492,023.51x = 639,738,035.28 × 349,007,925.71
  4. Step 4: Simplify right side
    426,492,023.51x = 223,273,644,692,462,912
  5. Step 5: Solve for x
    x = 223,273,644,692,462,912/426,492,023.51
  6. Step 6: Final answer
    x = 523,511,888.58

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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.