Home / 813,132,023.10-1,219,698,034.65-690,688,016.70

Finding the Fourth Proportional to 813,132,023.10, 1,219,698,034.65 and 690,688,016.70

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Solution

The fourth proportional to 813,132,023.10, 1,219,698,034.65 and 690,688,016.70 is: 1,036,032,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,132,023.10 : 1,219,698,034.65 = 690,688,016.70 : x
  2. Step 2: Convert to fraction form
    813,132,023.10/1,219,698,034.65 = 690,688,016.70/x
  3. Step 3: Cross multiply
    813,132,023.10x = 1,219,698,034.65 × 690,688,016.70
  4. Step 4: Simplify right side
    813,132,023.10x = 842,430,816,525,296,512
  5. Step 5: Solve for x
    x = 842,430,816,525,296,512/813,132,023.10
  6. Step 6: Final answer
    x = 1,036,032,025.05

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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.