Home / 12,085,809.40-18,128,714.10-10,763,111.80

Finding the Fourth Proportional to 12,085,809.40, 18,128,714.10 and 10,763,111.80

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Solution

The fourth proportional to 12,085,809.40, 18,128,714.10 and 10,763,111.80 is: 16,144,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085,809.40 : 18,128,714.10 = 10,763,111.80 : x
  2. Step 2: Convert to fraction form
    12,085,809.40/18,128,714.10 = 10,763,111.80/x
  3. Step 3: Cross multiply
    12,085,809.40x = 18,128,714.10 × 10,763,111.80
  4. Step 4: Simplify right side
    12,085,809.40x = 195,121,376,648,536.41
  5. Step 5: Solve for x
    x = 195,121,376,648,536.41/12,085,809.40
  6. Step 6: Final answer
    x = 16,144,667.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.