Home / 213,937,283.72-321,089,167.02-212,326,951.88

Finding the Fourth Proportional to 213,937,283.72, 321,089,167.02 and 212,326,951.88

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Solution

The fourth proportional to 213,937,283.72, 321,089,167.02 and 212,326,951.88 is: 318,672,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,937,283.72 : 321,089,167.02 = 212,326,951.88 : x
  2. Step 2: Convert to fraction form
    213,937,283.72/321,089,167.02 = 212,326,951.88/x
  3. Step 3: Cross multiply
    213,937,283.72x = 321,089,167.02 × 212,326,951.88
  4. Step 4: Simplify right side
    213,937,283.72x = 68,175,884,115,044,816
  5. Step 5: Solve for x
    x = 68,175,884,115,044,816/213,937,283.72
  6. Step 6: Final answer
    x = 318,672,289.98

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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.