Home / 528,039,570.40-792,059,355.60-309,794,466.40

Finding the Fourth Proportional to 528,039,570.40, 792,059,355.60 and 309,794,466.40

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Solution

The fourth proportional to 528,039,570.40, 792,059,355.60 and 309,794,466.40 is: 464,691,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039,570.40 : 792,059,355.60 = 309,794,466.40 : x
  2. Step 2: Convert to fraction form
    528,039,570.40/792,059,355.60 = 309,794,466.40/x
  3. Step 3: Cross multiply
    528,039,570.40x = 792,059,355.60 × 309,794,466.40
  4. Step 4: Simplify right side
    528,039,570.40x = 245,375,605,425,229,856
  5. Step 5: Solve for x
    x = 245,375,605,425,229,856/528,039,570.40
  6. Step 6: Final answer
    x = 464,691,699.60

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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.