Home / 319,117,036.81-477,693,787.02-208,213,905.55

Finding the Fourth Proportional to 319,117,036.81, 477,693,787.02 and 208,213,905.55

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Solution

The fourth proportional to 319,117,036.81, 477,693,787.02 and 208,213,905.55 is: 311,680,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,117,036.81 : 477,693,787.02 = 208,213,905.55 : x
  2. Step 2: Convert to fraction form
    319,117,036.81/477,693,787.02 = 208,213,905.55/x
  3. Step 3: Cross multiply
    319,117,036.81x = 477,693,787.02 × 208,213,905.55
  4. Step 4: Simplify right side
    319,117,036.81x = 99,462,489,052,404,096
  5. Step 5: Solve for x
    x = 99,462,489,052,404,096/319,117,036.81
  6. Step 6: Final answer
    x = 311,680,285.22

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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.