Home / 1,990,656,090.80-2,985,984,136.20-610,459,636.40

Finding the Fourth Proportional to 1,990,656,090.80, 2,985,984,136.20 and 610,459,636.40

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Solution

The fourth proportional to 1,990,656,090.80, 2,985,984,136.20 and 610,459,636.40 is: 915,689,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,656,090.80 : 2,985,984,136.20 = 610,459,636.40 : x
  2. Step 2: Convert to fraction form
    1,990,656,090.80/2,985,984,136.20 = 610,459,636.40/x
  3. Step 3: Cross multiply
    1,990,656,090.80x = 2,985,984,136.20 × 610,459,636.40
  4. Step 4: Simplify right side
    1,990,656,090.80x = 1,822,822,790,080,819,968
  5. Step 5: Solve for x
    x = 1,822,822,790,080,819,968/1,990,656,090.80
  6. Step 6: Final answer
    x = 915,689,454.60

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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.