Home / 1,122,175,005.80-1,683,300,999.90-345,814,500.20

Finding the Fourth Proportional to 1,122,175,005.80, 1,683,300,999.90 and 345,814,500.20

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Solution

The fourth proportional to 1,122,175,005.80, 1,683,300,999.90 and 345,814,500.20 is: 518,733,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,175,005.80 : 1,683,300,999.90 = 345,814,500.20 : x
  2. Step 2: Convert to fraction form
    1,122,175,005.80/1,683,300,999.90 = 345,814,500.20/x
  3. Step 3: Cross multiply
    1,122,175,005.80x = 1,683,300,999.90 × 345,814,500.20
  4. Step 4: Simplify right side
    1,122,175,005.80x = 582,109,893,966,578,816
  5. Step 5: Solve for x
    x = 582,109,893,966,578,816/1,122,175,005.80
  6. Step 6: Final answer
    x = 518,733,611.92

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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.