Home / 384,007,691.28-529,932,018.56-207,795,688.05

Finding the Fourth Proportional to 384,007,691.28, 529,932,018.56 and 207,795,688.05

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Solution

The fourth proportional to 384,007,691.28, 529,932,018.56 and 207,795,688.05 is: 286,758,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,007,691.28 : 529,932,018.56 = 207,795,688.05 : x
  2. Step 2: Convert to fraction form
    384,007,691.28/529,932,018.56 = 207,795,688.05/x
  3. Step 3: Cross multiply
    384,007,691.28x = 529,932,018.56 × 207,795,688.05
  4. Step 4: Simplify right side
    384,007,691.28x = 110,117,588,416,400,576
  5. Step 5: Solve for x
    x = 110,117,588,416,400,576/384,007,691.28
  6. Step 6: Final answer
    x = 286,758,809.57

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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.