Home / 1,218,752,737.92-1,681,873,519.68-661,831,194.24

Finding the Fourth Proportional to 1,218,752,737.92, 1,681,873,519.68 and 661,831,194.24

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Solution

The fourth proportional to 1,218,752,737.92, 1,681,873,519.68 and 661,831,194.24 is: 913,324,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,752,737.92 : 1,681,873,519.68 = 661,831,194.24 : x
  2. Step 2: Convert to fraction form
    1,218,752,737.92/1,681,873,519.68 = 661,831,194.24/x
  3. Step 3: Cross multiply
    1,218,752,737.92x = 1,681,873,519.68 × 661,831,194.24
  4. Step 4: Simplify right side
    1,218,752,737.92x = 1,113,116,360,090,446,592
  5. Step 5: Solve for x
    x = 1,113,116,360,090,446,592/1,218,752,737.92
  6. Step 6: Final answer
    x = 913,324,192.40

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1.5x scale

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.