Home / 12,186,547.16-16,789,170.66-8,509,639.74

Finding the Fourth Proportional to 12,186,547.16, 16,789,170.66 and 8,509,639.74

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Solution

The fourth proportional to 12,186,547.16, 16,789,170.66 and 8,509,639.74 is: 11,723,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186,547.16 : 16,789,170.66 = 8,509,639.74 : x
  2. Step 2: Convert to fraction form
    12,186,547.16/16,789,170.66 = 8,509,639.74/x
  3. Step 3: Cross multiply
    12,186,547.16x = 16,789,170.66 × 8,509,639.74
  4. Step 4: Simplify right side
    12,186,547.16x = 142,869,793,787,490.16
  5. Step 5: Solve for x
    x = 142,869,793,787,490.16/12,186,547.16
  6. Step 6: Final answer
    x = 11,723,566.32

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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.