Home / 21,004,999.80-31,507,499.70-17,757,742.20

Finding the Fourth Proportional to 21,004,999.80, 31,507,499.70 and 17,757,742.20

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Solution

The fourth proportional to 21,004,999.80, 31,507,499.70 and 17,757,742.20 is: 26,636,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,999.80 : 31,507,499.70 = 17,757,742.20 : x
  2. Step 2: Convert to fraction form
    21,004,999.80/31,507,499.70 = 17,757,742.20/x
  3. Step 3: Cross multiply
    21,004,999.80x = 31,507,499.70 × 17,757,742.20
  4. Step 4: Simplify right side
    21,004,999.80x = 559,502,057,039,177.31
  5. Step 5: Solve for x
    x = 559,502,057,039,177.31/21,004,999.80
  6. Step 6: Final answer
    x = 26,636,613.30

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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.