Home / 30,520,998.30-45,781,497.45-10,326,240.30

Finding the Fourth Proportional to 30,520,998.30, 45,781,497.45 and 10,326,240.30

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Solution

The fourth proportional to 30,520,998.30, 45,781,497.45 and 10,326,240.30 is: 15,489,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520,998.30 : 45,781,497.45 = 10,326,240.30 : x
  2. Step 2: Convert to fraction form
    30,520,998.30/45,781,497.45 = 10,326,240.30/x
  3. Step 3: Cross multiply
    30,520,998.30x = 45,781,497.45 × 10,326,240.30
  4. Step 4: Simplify right side
    30,520,998.30x = 472,750,743,962,537.31
  5. Step 5: Solve for x
    x = 472,750,743,962,537.31/30,520,998.30
  6. Step 6: Final answer
    x = 15,489,360.45

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Double scale
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Similar ratio
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1.5x scale

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.