Home / 990,528,920.10-1,485,793,380.15-664,011,569.70

Finding the Fourth Proportional to 990,528,920.10, 1,485,793,380.15 and 664,011,569.70

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Solution

The fourth proportional to 990,528,920.10, 1,485,793,380.15 and 664,011,569.70 is: 996,017,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,528,920.10 : 1,485,793,380.15 = 664,011,569.70 : x
  2. Step 2: Convert to fraction form
    990,528,920.10/1,485,793,380.15 = 664,011,569.70/x
  3. Step 3: Cross multiply
    990,528,920.10x = 1,485,793,380.15 × 664,011,569.70
  4. Step 4: Simplify right side
    990,528,920.10x = 986,583,994,603,270,400
  5. Step 5: Solve for x
    x = 986,583,994,603,270,400/990,528,920.10
  6. Step 6: Final answer
    x = 996,017,354.55

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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.