Home / 1,990,657,205.40-2,985,985,808.10-1,216,690,152.60

Finding the Fourth Proportional to 1,990,657,205.40, 2,985,985,808.10 and 1,216,690,152.60

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Solution

The fourth proportional to 1,990,657,205.40, 2,985,985,808.10 and 1,216,690,152.60 is: 1,825,035,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,205.40 : 2,985,985,808.10 = 1,216,690,152.60 : x
  2. Step 2: Convert to fraction form
    1,990,657,205.40/2,985,985,808.10 = 1,216,690,152.60/x
  3. Step 3: Cross multiply
    1,990,657,205.40x = 2,985,985,808.10 × 1,216,690,152.60
  4. Step 4: Simplify right side
    1,990,657,205.40x = 3,633,019,528,518,622,720
  5. Step 5: Solve for x
    x = 3,633,019,528,518,622,720/1,990,657,205.40
  6. Step 6: Final answer
    x = 1,825,035,228.90

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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.