Home / 206,688,211.70-310,032,317.55-137,813,458.10

Finding the Fourth Proportional to 206,688,211.70, 310,032,317.55 and 137,813,458.10

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Solution

The fourth proportional to 206,688,211.70, 310,032,317.55 and 137,813,458.10 is: 206,720,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688,211.70 : 310,032,317.55 = 137,813,458.10 : x
  2. Step 2: Convert to fraction form
    206,688,211.70/310,032,317.55 = 137,813,458.10/x
  3. Step 3: Cross multiply
    206,688,211.70x = 310,032,317.55 × 137,813,458.10
  4. Step 4: Simplify right side
    206,688,211.70x = 42,726,625,804,322,816
  5. Step 5: Solve for x
    x = 42,726,625,804,322,816/206,688,211.70
  6. Step 6: Final answer
    x = 206,720,187.15

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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.