Home / 663,258,816.80-994,888,225.20-209,330,266.40

Finding the Fourth Proportional to 663,258,816.80, 994,888,225.20 and 209,330,266.40

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Solution

The fourth proportional to 663,258,816.80, 994,888,225.20 and 209,330,266.40 is: 313,995,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,258,816.80 : 994,888,225.20 = 209,330,266.40 : x
  2. Step 2: Convert to fraction form
    663,258,816.80/994,888,225.20 = 209,330,266.40/x
  3. Step 3: Cross multiply
    663,258,816.80x = 994,888,225.20 × 209,330,266.40
  4. Step 4: Simplify right side
    663,258,816.80x = 208,260,217,219,339,200
  5. Step 5: Solve for x
    x = 208,260,217,219,339,200/663,258,816.80
  6. Step 6: Final answer
    x = 313,995,399.60

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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.