Home / 664,411,521.20-996,617,281.80-509,443,325.60

Finding the Fourth Proportional to 664,411,521.20, 996,617,281.80 and 509,443,325.60

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Solution

The fourth proportional to 664,411,521.20, 996,617,281.80 and 509,443,325.60 is: 764,164,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,411,521.20 : 996,617,281.80 = 509,443,325.60 : x
  2. Step 2: Convert to fraction form
    664,411,521.20/996,617,281.80 = 509,443,325.60/x
  3. Step 3: Cross multiply
    664,411,521.20x = 996,617,281.80 × 509,443,325.60
  4. Step 4: Simplify right side
    664,411,521.20x = 507,720,022,390,624,384
  5. Step 5: Solve for x
    x = 507,720,022,390,624,384/664,411,521.20
  6. Step 6: Final answer
    x = 764,164,988.40

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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.