Home / 668,865,641.55-1,003,427,667.30-254,310,230.21

Finding the Fourth Proportional to 668,865,641.55, 1,003,427,667.30 and 254,310,230.21

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Solution

The fourth proportional to 668,865,641.55, 1,003,427,667.30 and 254,310,230.21 is: 381,514,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,865,641.55 : 1,003,427,667.30 = 254,310,230.21 : x
  2. Step 2: Convert to fraction form
    668,865,641.55/1,003,427,667.30 = 254,310,230.21/x
  3. Step 3: Cross multiply
    668,865,641.55x = 1,003,427,667.30 × 254,310,230.21
  4. Step 4: Simplify right side
    668,865,641.55x = 255,181,921,065,129,152
  5. Step 5: Solve for x
    x = 255,181,921,065,129,152/668,865,641.55
  6. Step 6: Final answer
    x = 381,514,470.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.