Home / 154,769,894.64-213,578,050.32-85,155,322.68

Finding the Fourth Proportional to 154,769,894.64, 213,578,050.32 and 85,155,322.68

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Solution

The fourth proportional to 154,769,894.64, 213,578,050.32 and 85,155,322.68 is: 117,511,922.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,769,894.64 : 213,578,050.32 = 85,155,322.68 : x
  2. Step 2: Convert to fraction form
    154,769,894.64/213,578,050.32 = 85,155,322.68/x
  3. Step 3: Cross multiply
    154,769,894.64x = 213,578,050.32 × 85,155,322.68
  4. Step 4: Simplify right side
    154,769,894.64x = 18,187,307,792,364,880
  5. Step 5: Solve for x
    x = 18,187,307,792,364,880/154,769,894.64
  6. Step 6: Final answer
    x = 117,511,922.04

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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.