Home / 212,868,014.40-319,302,021.60-76,535,683.20

Finding the Fourth Proportional to 212,868,014.40, 319,302,021.60 and 76,535,683.20

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Solution

The fourth proportional to 212,868,014.40, 319,302,021.60 and 76,535,683.20 is: 114,803,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868,014.40 : 319,302,021.60 = 76,535,683.20 : x
  2. Step 2: Convert to fraction form
    212,868,014.40/319,302,021.60 = 76,535,683.20/x
  3. Step 3: Cross multiply
    212,868,014.40x = 319,302,021.60 × 76,535,683.20
  4. Step 4: Simplify right side
    212,868,014.40x = 24,437,998,370,297,160
  5. Step 5: Solve for x
    x = 24,437,998,370,297,160/212,868,014.40
  6. Step 6: Final answer
    x = 114,803,524.80

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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.