Home / 7,831,220.90-11,746,831.35-5,705,456.90

Finding the Fourth Proportional to 7,831,220.90, 11,746,831.35 and 5,705,456.90

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Solution

The fourth proportional to 7,831,220.90, 11,746,831.35 and 5,705,456.90 is: 8,558,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,220.90 : 11,746,831.35 = 5,705,456.90 : x
  2. Step 2: Convert to fraction form
    7,831,220.90/11,746,831.35 = 5,705,456.90/x
  3. Step 3: Cross multiply
    7,831,220.90x = 11,746,831.35 × 5,705,456.90
  4. Step 4: Simplify right side
    7,831,220.90x = 67,021,039,978,993.82
  5. Step 5: Solve for x
    x = 67,021,039,978,993.82/7,831,220.90
  6. Step 6: Final answer
    x = 8,558,185.35

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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.