Home / 415,028,426.56-622,574,782.08-138,680,601.28

Finding the Fourth Proportional to 415,028,426.56, 622,574,782.08 and 138,680,601.28

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Solution

The fourth proportional to 415,028,426.56, 622,574,782.08 and 138,680,601.28 is: 208,031,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,028,426.56 : 622,574,782.08 = 138,680,601.28 : x
  2. Step 2: Convert to fraction form
    415,028,426.56/622,574,782.08 = 138,680,601.28/x
  3. Step 3: Cross multiply
    415,028,426.56x = 622,574,782.08 × 138,680,601.28
  4. Step 4: Simplify right side
    415,028,426.56x = 86,339,045,120,619,376
  5. Step 5: Solve for x
    x = 86,339,045,120,619,376/415,028,426.56
  6. Step 6: Final answer
    x = 208,031,642.16

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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.