Home / 138,411,263.69-207,106,135.83-83,112,776.33

Finding the Fourth Proportional to 138,411,263.69, 207,106,135.83 and 83,112,776.33

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Solution

The fourth proportional to 138,411,263.69, 207,106,135.83 and 83,112,776.33 is: 124,362,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,411,263.69 : 207,106,135.83 = 83,112,776.33 : x
  2. Step 2: Convert to fraction form
    138,411,263.69/207,106,135.83 = 83,112,776.33/x
  3. Step 3: Cross multiply
    138,411,263.69x = 207,106,135.83 × 83,112,776.33
  4. Step 4: Simplify right side
    138,411,263.69x = 17,213,165,943,809,390
  5. Step 5: Solve for x
    x = 17,213,165,943,809,390/138,411,263.69
  6. Step 6: Final answer
    x = 124,362,465.05

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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.