Home / 352,298,721.60-528,448,082.40-279,739,310.40

Finding the Fourth Proportional to 352,298,721.60, 528,448,082.40 and 279,739,310.40

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Solution

The fourth proportional to 352,298,721.60, 528,448,082.40 and 279,739,310.40 is: 419,608,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,298,721.60 : 528,448,082.40 = 279,739,310.40 : x
  2. Step 2: Convert to fraction form
    352,298,721.60/528,448,082.40 = 279,739,310.40/x
  3. Step 3: Cross multiply
    352,298,721.60x = 528,448,082.40 × 279,739,310.40
  4. Step 4: Simplify right side
    352,298,721.60x = 147,827,702,152,778,368
  5. Step 5: Solve for x
    x = 147,827,702,152,778,368/352,298,721.60
  6. Step 6: Final answer
    x = 419,608,965.60

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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.