Home / 522,700,777.68-782,081,155.80-311,831,637.36

Finding the Fourth Proportional to 522,700,777.68, 782,081,155.80 and 311,831,637.36

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Solution

The fourth proportional to 522,700,777.68, 782,081,155.80 and 311,831,637.36 is: 466,572,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,700,777.68 : 782,081,155.80 = 311,831,637.36 : x
  2. Step 2: Convert to fraction form
    522,700,777.68/782,081,155.80 = 311,831,637.36/x
  3. Step 3: Cross multiply
    522,700,777.68x = 782,081,155.80 × 311,831,637.36
  4. Step 4: Simplify right side
    522,700,777.68x = 243,877,647,361,515,264
  5. Step 5: Solve for x
    x = 243,877,647,361,515,264/522,700,777.68
  6. Step 6: Final answer
    x = 466,572,191.54

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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.