Home / 1,270,120,228.05-1,904,840,219.78-349,777,790.13

Finding the Fourth Proportional to 1,270,120,228.05, 1,904,840,219.78 and 349,777,790.13

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Solution

The fourth proportional to 1,270,120,228.05, 1,904,840,219.78 and 349,777,790.13 is: 524,573,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,120,228.05 : 1,904,840,219.78 = 349,777,790.13 : x
  2. Step 2: Convert to fraction form
    1,270,120,228.05/1,904,840,219.78 = 349,777,790.13/x
  3. Step 3: Cross multiply
    1,270,120,228.05x = 1,904,840,219.78 × 349,777,790.13
  4. Step 4: Simplify right side
    1,270,120,228.05x = 666,270,802,623,643,008
  5. Step 5: Solve for x
    x = 666,270,802,623,643,008/1,270,120,228.05
  6. Step 6: Final answer
    x = 524,573,019.08

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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.