Home / 201,552,911.11-278,125,285.11-112,238,106.28

Finding the Fourth Proportional to 201,552,911.11, 278,125,285.11 and 112,238,106.28

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Solution

The fourth proportional to 201,552,911.11, 278,125,285.11 and 112,238,106.28 is: 154,878,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,552,911.11 : 278,125,285.11 = 112,238,106.28 : x
  2. Step 2: Convert to fraction form
    201,552,911.11/278,125,285.11 = 112,238,106.28/x
  3. Step 3: Cross multiply
    201,552,911.11x = 278,125,285.11 × 112,238,106.28
  4. Step 4: Simplify right side
    201,552,911.11x = 31,216,255,309,331,484
  5. Step 5: Solve for x
    x = 31,216,255,309,331,484/201,552,911.11
  6. Step 6: Final answer
    x = 154,878,712.18

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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.