Home / 340,451,974.61-469,809,208.80-189,736,610.63

Finding the Fourth Proportional to 340,451,974.61, 469,809,208.80 and 189,736,610.63

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Solution

The fourth proportional to 340,451,974.61, 469,809,208.80 and 189,736,610.63 is: 261,828,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,451,974.61 : 469,809,208.80 = 189,736,610.63 : x
  2. Step 2: Convert to fraction form
    340,451,974.61/469,809,208.80 = 189,736,610.63/x
  3. Step 3: Cross multiply
    340,451,974.61x = 469,809,208.80 × 189,736,610.63
  4. Step 4: Simplify right side
    340,451,974.61x = 89,140,006,920,473,968
  5. Step 5: Solve for x
    x = 89,140,006,920,473,968/340,451,974.61
  6. Step 6: Final answer
    x = 261,828,432.70

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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.