Home / 551,427,926.80-827,141,890.20-509,337,799.60

Finding the Fourth Proportional to 551,427,926.80, 827,141,890.20 and 509,337,799.60

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Solution

The fourth proportional to 551,427,926.80, 827,141,890.20 and 509,337,799.60 is: 764,006,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,427,926.80 : 827,141,890.20 = 509,337,799.60 : x
  2. Step 2: Convert to fraction form
    551,427,926.80/827,141,890.20 = 509,337,799.60/x
  3. Step 3: Cross multiply
    551,427,926.80x = 827,141,890.20 × 509,337,799.60
  4. Step 4: Simplify right side
    551,427,926.80x = 421,294,630,311,452,864
  5. Step 5: Solve for x
    x = 421,294,630,311,452,864/551,427,926.80
  6. Step 6: Final answer
    x = 764,006,699.40

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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.