Home / 30,127,998.80-45,191,998.20-9,657,678.80

Finding the Fourth Proportional to 30,127,998.80, 45,191,998.20 and 9,657,678.80

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Solution

The fourth proportional to 30,127,998.80, 45,191,998.20 and 9,657,678.80 is: 14,486,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127,998.80 : 45,191,998.20 = 9,657,678.80 : x
  2. Step 2: Convert to fraction form
    30,127,998.80/45,191,998.20 = 9,657,678.80/x
  3. Step 3: Cross multiply
    30,127,998.80x = 45,191,998.20 × 9,657,678.80
  4. Step 4: Simplify right side
    30,127,998.80x = 436,449,802,945,778.25
  5. Step 5: Solve for x
    x = 436,449,802,945,778.25/30,127,998.80
  6. Step 6: Final answer
    x = 14,486,518.20

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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.