Home / 242,643,409-363,965,113.50-81,085,345

Finding the Fourth Proportional to 242,643,409, 363,965,113.50 and 81,085,345

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Solution

The fourth proportional to 242,643,409, 363,965,113.50 and 81,085,345 is: 121,628,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,643,409 : 363,965,113.50 = 81,085,345 : x
  2. Step 2: Convert to fraction form
    242,643,409/363,965,113.50 = 81,085,345/x
  3. Step 3: Cross multiply
    242,643,409x = 363,965,113.50 × 81,085,345
  4. Step 4: Simplify right side
    242,643,409x = 29,512,236,796,111,656
  5. Step 5: Solve for x
    x = 29,512,236,796,111,656/242,643,409
  6. Step 6: Final answer
    x = 121,628,017.50

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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.