Home / 528,441,421.80-792,662,132.70-382,566,772.20

Finding the Fourth Proportional to 528,441,421.80, 792,662,132.70 and 382,566,772.20

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Solution

The fourth proportional to 528,441,421.80, 792,662,132.70 and 382,566,772.20 is: 573,850,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,441,421.80 : 792,662,132.70 = 382,566,772.20 : x
  2. Step 2: Convert to fraction form
    528,441,421.80/792,662,132.70 = 382,566,772.20/x
  3. Step 3: Cross multiply
    528,441,421.80x = 792,662,132.70 × 382,566,772.20
  4. Step 4: Simplify right side
    528,441,421.80x = 303,246,193,552,207,104
  5. Step 5: Solve for x
    x = 303,246,193,552,207,104/528,441,421.80
  6. Step 6: Final answer
    x = 573,850,158.30

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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.