Home / 1,990,657,598.40-2,985,986,399.20-1,216,690,545.60

Finding the Fourth Proportional to 1,990,657,598.40, 2,985,986,399.20 and 1,216,690,545.60

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Solution

The fourth proportional to 1,990,657,598.40, 2,985,986,399.20 and 1,216,690,545.60 is: 1,825,035,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,598.40 : 2,985,986,399.20 = 1,216,690,545.60 : x
  2. Step 2: Convert to fraction form
    1,990,657,598.40/2,985,986,399.20 = 1,216,690,545.60/x
  3. Step 3: Cross multiply
    1,990,657,598.40x = 2,985,986,399.20 × 1,216,690,545.60
  4. Step 4: Simplify right side
    1,990,657,598.40x = 3,633,021,421,196,827,136
  5. Step 5: Solve for x
    x = 3,633,021,421,196,827,136/1,990,657,598.40
  6. Step 6: Final answer
    x = 1,825,035,819.38

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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.