Home / 309,850,368.75-427,593,508.88-170,620,798.77

Finding the Fourth Proportional to 309,850,368.75, 427,593,508.88 and 170,620,798.77

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Solution

The fourth proportional to 309,850,368.75, 427,593,508.88 and 170,620,798.77 is: 235,456,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,850,368.75 : 427,593,508.88 = 170,620,798.77 : x
  2. Step 2: Convert to fraction form
    309,850,368.75/427,593,508.88 = 170,620,798.77/x
  3. Step 3: Cross multiply
    309,850,368.75x = 427,593,508.88 × 170,620,798.77
  4. Step 4: Simplify right side
    309,850,368.75x = 72,956,346,033,119,584
  5. Step 5: Solve for x
    x = 72,956,346,033,119,584/309,850,368.75
  6. Step 6: Final answer
    x = 235,456,702.30

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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.