Home / 513,216,331.20-769,824,496.80-168,181,214.40

Finding the Fourth Proportional to 513,216,331.20, 769,824,496.80 and 168,181,214.40

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Solution

The fourth proportional to 513,216,331.20, 769,824,496.80 and 168,181,214.40 is: 252,271,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,331.20 : 769,824,496.80 = 168,181,214.40 : x
  2. Step 2: Convert to fraction form
    513,216,331.20/769,824,496.80 = 168,181,214.40/x
  3. Step 3: Cross multiply
    513,216,331.20x = 769,824,496.80 × 168,181,214.40
  4. Step 4: Simplify right side
    513,216,331.20x = 129,470,018,746,692,912
  5. Step 5: Solve for x
    x = 129,470,018,746,692,912/513,216,331.20
  6. Step 6: Final answer
    x = 252,271,821.60

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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.