Home / 139,359,460.86-209,025,683.70-42,316,021.44

Finding the Fourth Proportional to 139,359,460.86, 209,025,683.70 and 42,316,021.44

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Solution

The fourth proportional to 139,359,460.86, 209,025,683.70 and 42,316,021.44 is: 63,469,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,359,460.86 : 209,025,683.70 = 42,316,021.44 : x
  2. Step 2: Convert to fraction form
    139,359,460.86/209,025,683.70 = 42,316,021.44/x
  3. Step 3: Cross multiply
    139,359,460.86x = 209,025,683.70 × 42,316,021.44
  4. Step 4: Simplify right side
    139,359,460.86x = 8,845,135,312,959,858
  5. Step 5: Solve for x
    x = 8,845,135,312,959,858/139,359,460.86
  6. Step 6: Final answer
    x = 63,469,930.63

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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.