Home / 328,729,809.08-453,428,700.72-211,403,470.16

Finding the Fourth Proportional to 328,729,809.08, 453,428,700.72 and 211,403,470.16

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Solution

The fourth proportional to 328,729,809.08, 453,428,700.72 and 211,403,470.16 is: 291,596,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,729,809.08 : 453,428,700.72 = 211,403,470.16 : x
  2. Step 2: Convert to fraction form
    328,729,809.08/453,428,700.72 = 211,403,470.16/x
  3. Step 3: Cross multiply
    328,729,809.08x = 453,428,700.72 × 211,403,470.16
  4. Step 4: Simplify right side
    328,729,809.08x = 95,856,400,802,348,096
  5. Step 5: Solve for x
    x = 95,856,400,802,348,096/328,729,809.08
  6. Step 6: Final answer
    x = 291,596,314.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.