Home / 212,793,807.60-319,190,711.40-76,492,969.20

Finding the Fourth Proportional to 212,793,807.60, 319,190,711.40 and 76,492,969.20

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Solution

The fourth proportional to 212,793,807.60, 319,190,711.40 and 76,492,969.20 is: 114,739,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,793,807.60 : 319,190,711.40 = 76,492,969.20 : x
  2. Step 2: Convert to fraction form
    212,793,807.60/319,190,711.40 = 76,492,969.20/x
  3. Step 3: Cross multiply
    212,793,807.60x = 319,190,711.40 × 76,492,969.20
  4. Step 4: Simplify right side
    212,793,807.60x = 24,415,845,256,046,288
  5. Step 5: Solve for x
    x = 24,415,845,256,046,288/212,793,807.60
  6. Step 6: Final answer
    x = 114,739,453.80

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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.