Home / 389,179,528.68-537,067,792.08-212,967,561.36

Finding the Fourth Proportional to 389,179,528.68, 537,067,792.08 and 212,967,561.36

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Solution

The fourth proportional to 389,179,528.68, 537,067,792.08 and 212,967,561.36 is: 293,895,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,179,528.68 : 537,067,792.08 = 212,967,561.36 : x
  2. Step 2: Convert to fraction form
    389,179,528.68/537,067,792.08 = 212,967,561.36/x
  3. Step 3: Cross multiply
    389,179,528.68x = 537,067,792.08 × 212,967,561.36
  4. Step 4: Simplify right side
    389,179,528.68x = 114,378,017,964,277,136
  5. Step 5: Solve for x
    x = 114,378,017,964,277,136/389,179,528.68
  6. Step 6: Final answer
    x = 293,895,257.93

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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.