Home / 384,007,689.78-529,932,016.49-207,795,686.55

Finding the Fourth Proportional to 384,007,689.78, 529,932,016.49 and 207,795,686.55

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Solution

The fourth proportional to 384,007,689.78, 529,932,016.49 and 207,795,686.55 is: 286,758,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,007,689.78 : 529,932,016.49 = 207,795,686.55 : x
  2. Step 2: Convert to fraction form
    384,007,689.78/529,932,016.49 = 207,795,686.55/x
  3. Step 3: Cross multiply
    384,007,689.78x = 529,932,016.49 × 207,795,686.55
  4. Step 4: Simplify right side
    384,007,689.78x = 110,117,587,190,326,496
  5. Step 5: Solve for x
    x = 110,117,587,190,326,496/384,007,689.78
  6. Step 6: Final answer
    x = 286,758,807.50

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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.