Home / 212,903,181.60-319,354,772.40-76,570,850.40

Finding the Fourth Proportional to 212,903,181.60, 319,354,772.40 and 76,570,850.40

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Solution

The fourth proportional to 212,903,181.60, 319,354,772.40 and 76,570,850.40 is: 114,856,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,903,181.60 : 319,354,772.40 = 76,570,850.40 : x
  2. Step 2: Convert to fraction form
    212,903,181.60/319,354,772.40 = 76,570,850.40/x
  3. Step 3: Cross multiply
    212,903,181.60x = 319,354,772.40 × 76,570,850.40
  4. Step 4: Simplify right side
    212,903,181.60x = 24,453,266,501,966,448
  5. Step 5: Solve for x
    x = 24,453,266,501,966,448/212,903,181.60
  6. Step 6: Final answer
    x = 114,856,275.60

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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.