Home / 135,247,990.65-186,646,392.51-76,509,477.69

Finding the Fourth Proportional to 135,247,990.65, 186,646,392.51 and 76,509,477.69

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Solution

The fourth proportional to 135,247,990.65, 186,646,392.51 and 76,509,477.69 is: 105,585,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,247,990.65 : 186,646,392.51 = 76,509,477.69 : x
  2. Step 2: Convert to fraction form
    135,247,990.65/186,646,392.51 = 76,509,477.69/x
  3. Step 3: Cross multiply
    135,247,990.65x = 186,646,392.51 × 76,509,477.69
  4. Step 4: Simplify right side
    135,247,990.65x = 14,280,218,003,662,826
  5. Step 5: Solve for x
    x = 14,280,218,003,662,826/135,247,990.65
  6. Step 6: Final answer
    x = 105,585,435.58

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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.