Home / 212,800,621.16-319,214,398.16-89,956,038.38

Finding the Fourth Proportional to 212,800,621.16, 319,214,398.16 and 89,956,038.38

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Solution

The fourth proportional to 212,800,621.16, 319,214,398.16 and 89,956,038.38 is: 134,939,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,800,621.16 : 319,214,398.16 = 89,956,038.38 : x
  2. Step 2: Convert to fraction form
    212,800,621.16/319,214,398.16 = 89,956,038.38/x
  3. Step 3: Cross multiply
    212,800,621.16x = 319,214,398.16 × 89,956,038.38
  4. Step 4: Simplify right side
    212,800,621.16x = 28,715,262,650,958,380
  5. Step 5: Solve for x
    x = 28,715,262,650,958,380/212,800,621.16
  6. Step 6: Final answer
    x = 134,939,750.15

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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.