Home / 813,132,022.60-1,219,698,033.90-690,688,016.20

Finding the Fourth Proportional to 813,132,022.60, 1,219,698,033.90 and 690,688,016.20

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Solution

The fourth proportional to 813,132,022.60, 1,219,698,033.90 and 690,688,016.20 is: 1,036,032,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,132,022.60 : 1,219,698,033.90 = 690,688,016.20 : x
  2. Step 2: Convert to fraction form
    813,132,022.60/1,219,698,033.90 = 690,688,016.20/x
  3. Step 3: Cross multiply
    813,132,022.60x = 1,219,698,033.90 × 690,688,016.20
  4. Step 4: Simplify right side
    813,132,022.60x = 842,430,815,397,431,424
  5. Step 5: Solve for x
    x = 842,430,815,397,431,424/813,132,022.60
  6. Step 6: Final answer
    x = 1,036,032,024.30

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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.