Home / 12,105,865.16-16,705,490.04-6,878,182.76

Finding the Fourth Proportional to 12,105,865.16, 16,705,490.04 and 6,878,182.76

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Solution

The fourth proportional to 12,105,865.16, 16,705,490.04 and 6,878,182.76 is: 9,491,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105,865.16 : 16,705,490.04 = 6,878,182.76 : x
  2. Step 2: Convert to fraction form
    12,105,865.16/16,705,490.04 = 6,878,182.76/x
  3. Step 3: Cross multiply
    12,105,865.16x = 16,705,490.04 × 6,878,182.76
  4. Step 4: Simplify right side
    12,105,865.16x = 114,903,413,590,479.70
  5. Step 5: Solve for x
    x = 114,903,413,590,479.70/12,105,865.16
  6. Step 6: Final answer
    x = 9,491,549.10

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1.5x scale

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.