Home / 212,985,713.20-319,030,672.20-177,153,905.20

Finding the Fourth Proportional to 212,985,713.20, 319,030,672.20 and 177,153,905.20

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Solution

The fourth proportional to 212,985,713.20, 319,030,672.20 and 177,153,905.20 is: 265,358,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,985,713.20 : 319,030,672.20 = 177,153,905.20 : x
  2. Step 2: Convert to fraction form
    212,985,713.20/319,030,672.20 = 177,153,905.20/x
  3. Step 3: Cross multiply
    212,985,713.20x = 319,030,672.20 × 177,153,905.20
  4. Step 4: Simplify right side
    212,985,713.20x = 56,517,529,458,811,072
  5. Step 5: Solve for x
    x = 56,517,529,458,811,072/212,985,713.20
  6. Step 6: Final answer
    x = 265,358,312.58

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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.