Home / 20,208,666.30-30,312,999.45-9,978,427.05

Finding the Fourth Proportional to 20,208,666.30, 30,312,999.45 and 9,978,427.05

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Solution

The fourth proportional to 20,208,666.30, 30,312,999.45 and 9,978,427.05 is: 14,967,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208,666.30 : 30,312,999.45 = 9,978,427.05 : x
  2. Step 2: Convert to fraction form
    20,208,666.30/30,312,999.45 = 9,978,427.05/x
  3. Step 3: Cross multiply
    20,208,666.30x = 30,312,999.45 × 9,978,427.05
  4. Step 4: Simplify right side
    20,208,666.30x = 302,476,053,678,515.12
  5. Step 5: Solve for x
    x = 302,476,053,678,515.12/20,208,666.30
  6. Step 6: Final answer
    x = 14,967,640.58

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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.