Home / 528,087,208.60-792,466,736.10-309,737,128.60

Finding the Fourth Proportional to 528,087,208.60, 792,466,736.10 and 309,737,128.60

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Solution

The fourth proportional to 528,087,208.60, 792,466,736.10 and 309,737,128.60 is: 464,802,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,087,208.60 : 792,466,736.10 = 309,737,128.60 : x
  2. Step 2: Convert to fraction form
    528,087,208.60/792,466,736.10 = 309,737,128.60/x
  3. Step 3: Cross multiply
    528,087,208.60x = 792,466,736.10 × 309,737,128.60
  4. Step 4: Simplify right side
    528,087,208.60x = 245,456,371,350,628,000
  5. Step 5: Solve for x
    x = 245,456,371,350,628,000/528,087,208.60
  6. Step 6: Final answer
    x = 464,802,720.75

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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.