Home / 112,620,632.19-155,470,364.64-75,006,392.15

Finding the Fourth Proportional to 112,620,632.19, 155,470,364.64 and 75,006,392.15

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Solution

The fourth proportional to 112,620,632.19, 155,470,364.64 and 75,006,392.15 is: 103,544,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,620,632.19 : 155,470,364.64 = 75,006,392.15 : x
  2. Step 2: Convert to fraction form
    112,620,632.19/155,470,364.64 = 75,006,392.15/x
  3. Step 3: Cross multiply
    112,620,632.19x = 155,470,364.64 × 75,006,392.15
  4. Step 4: Simplify right side
    112,620,632.19x = 11,661,271,137,113,980
  5. Step 5: Solve for x
    x = 11,661,271,137,113,980/112,620,632.19
  6. Step 6: Final answer
    x = 103,544,713.88

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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.