Home / 513,318,020.40-769,977,030.60-254,573,175.60

Finding the Fourth Proportional to 513,318,020.40, 769,977,030.60 and 254,573,175.60

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Solution

The fourth proportional to 513,318,020.40, 769,977,030.60 and 254,573,175.60 is: 381,859,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,318,020.40 : 769,977,030.60 = 254,573,175.60 : x
  2. Step 2: Convert to fraction form
    513,318,020.40/769,977,030.60 = 254,573,175.60/x
  3. Step 3: Cross multiply
    513,318,020.40x = 769,977,030.60 × 254,573,175.60
  4. Step 4: Simplify right side
    513,318,020.40x = 196,015,497,818,900,384
  5. Step 5: Solve for x
    x = 196,015,497,818,900,384/513,318,020.40
  6. Step 6: Final answer
    x = 381,859,763.40

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1.5x scale

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.