Home / 7,831,278.90-11,746,918.35-5,705,514.90

Finding the Fourth Proportional to 7,831,278.90, 11,746,918.35 and 5,705,514.90

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Solution

The fourth proportional to 7,831,278.90, 11,746,918.35 and 5,705,514.90 is: 8,558,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,278.90 : 11,746,918.35 = 5,705,514.90 : x
  2. Step 2: Convert to fraction form
    7,831,278.90/11,746,918.35 = 5,705,514.90/x
  3. Step 3: Cross multiply
    7,831,278.90x = 11,746,918.35 × 5,705,514.90
  4. Step 4: Simplify right side
    7,831,278.90x = 67,022,217,675,008.41
  5. Step 5: Solve for x
    x = 67,022,217,675,008.41/7,831,278.90
  6. Step 6: Final answer
    x = 8,558,272.35

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Double scale
Find fourth proportional to 7,831,279.90, 11,746,919.85 and 5,705,515.90
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.