Home / 208,205,206.60-286,964,552.10-138,465,975.64

Finding the Fourth Proportional to 208,205,206.60, 286,964,552.10 and 138,465,975.64

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Solution

The fourth proportional to 208,205,206.60, 286,964,552.10 and 138,465,975.64 is: 190,844,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205,206.60 : 286,964,552.10 = 138,465,975.64 : x
  2. Step 2: Convert to fraction form
    208,205,206.60/286,964,552.10 = 138,465,975.64/x
  3. Step 3: Cross multiply
    208,205,206.60x = 286,964,552.10 × 138,465,975.64
  4. Step 4: Simplify right side
    208,205,206.60x = 39,734,826,680,622,112
  5. Step 5: Solve for x
    x = 39,734,826,680,622,112/208,205,206.60
  6. Step 6: Final answer
    x = 190,844,539.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.