Home / 205,123,280.40-307,684,920.60-61,516,112.40

Finding the Fourth Proportional to 205,123,280.40, 307,684,920.60 and 61,516,112.40

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Solution

The fourth proportional to 205,123,280.40, 307,684,920.60 and 61,516,112.40 is: 92,274,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,123,280.40 : 307,684,920.60 = 61,516,112.40 : x
  2. Step 2: Convert to fraction form
    205,123,280.40/307,684,920.60 = 61,516,112.40/x
  3. Step 3: Cross multiply
    205,123,280.40x = 307,684,920.60 × 61,516,112.40
  4. Step 4: Simplify right side
    205,123,280.40x = 18,927,580,159,414,676
  5. Step 5: Solve for x
    x = 18,927,580,159,414,676/205,123,280.40
  6. Step 6: Final answer
    x = 92,274,168.60

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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.