Home / 1,220,832,832.60-1,831,361,223.30-402,946,931.80

Finding the Fourth Proportional to 1,220,832,832.60, 1,831,361,223.30 and 402,946,931.80

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Solution

The fourth proportional to 1,220,832,832.60, 1,831,361,223.30 and 402,946,931.80 is: 604,457,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,832,832.60 : 1,831,361,223.30 = 402,946,931.80 : x
  2. Step 2: Convert to fraction form
    1,220,832,832.60/1,831,361,223.30 = 402,946,931.80/x
  3. Step 3: Cross multiply
    1,220,832,832.60x = 1,831,361,223.30 × 402,946,931.80
  4. Step 4: Simplify right side
    1,220,832,832.60x = 737,941,385,946,229,632
  5. Step 5: Solve for x
    x = 737,941,385,946,229,632/1,220,832,832.60
  6. Step 6: Final answer
    x = 604,457,355.86

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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.