Home / 7,831,220.10-11,746,830.15-7,299,779.10

Finding the Fourth Proportional to 7,831,220.10, 11,746,830.15 and 7,299,779.10

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Solution

The fourth proportional to 7,831,220.10, 11,746,830.15 and 7,299,779.10 is: 10,949,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,220.10 : 11,746,830.15 = 7,299,779.10 : x
  2. Step 2: Convert to fraction form
    7,831,220.10/11,746,830.15 = 7,299,779.10/x
  3. Step 3: Cross multiply
    7,831,220.10x = 11,746,830.15 × 7,299,779.10
  4. Step 4: Simplify right side
    7,831,220.10x = 85,749,265,220,219.86
  5. Step 5: Solve for x
    x = 85,749,265,220,219.86/7,831,220.10
  6. Step 6: Final answer
    x = 10,949,668.65

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Half scale
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Double scale
Find fourth proportional to 7,831,221.10, 11,746,831.65 and 7,299,780.10
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.