Home / 1,220,832,846.60-1,831,361,244.30-402,946,945.80

Finding the Fourth Proportional to 1,220,832,846.60, 1,831,361,244.30 and 402,946,945.80

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Solution

The fourth proportional to 1,220,832,846.60, 1,831,361,244.30 and 402,946,945.80 is: 604,457,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,832,846.60 : 1,831,361,244.30 = 402,946,945.80 : x
  2. Step 2: Convert to fraction form
    1,220,832,846.60/1,831,361,244.30 = 402,946,945.80/x
  3. Step 3: Cross multiply
    1,220,832,846.60x = 1,831,361,244.30 × 402,946,945.80
  4. Step 4: Simplify right side
    1,220,832,846.60x = 737,941,420,047,172,608
  5. Step 5: Solve for x
    x = 737,941,420,047,172,608/1,220,832,846.60
  6. Step 6: Final answer
    x = 604,457,376.87

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Double scale
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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.