Home / 317,145,689.69-437,664,036.51-177,919,439.90

Finding the Fourth Proportional to 317,145,689.69, 437,664,036.51 and 177,919,439.90

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Solution

The fourth proportional to 317,145,689.69, 437,664,036.51 and 177,919,439.90 is: 245,530,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,145,689.69 : 437,664,036.51 = 177,919,439.90 : x
  2. Step 2: Convert to fraction form
    317,145,689.69/437,664,036.51 = 177,919,439.90/x
  3. Step 3: Cross multiply
    317,145,689.69x = 437,664,036.51 × 177,919,439.90
  4. Step 4: Simplify right side
    317,145,689.69x = 77,868,940,238,044,032
  5. Step 5: Solve for x
    x = 77,868,940,238,044,032/317,145,689.69
  6. Step 6: Final answer
    x = 245,530,501.50

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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.