Home / 528,119,511.60-792,179,267.40-505,728,130.80

Finding the Fourth Proportional to 528,119,511.60, 792,179,267.40 and 505,728,130.80

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Solution

The fourth proportional to 528,119,511.60, 792,179,267.40 and 505,728,130.80 is: 758,592,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,119,511.60 : 792,179,267.40 = 505,728,130.80 : x
  2. Step 2: Convert to fraction form
    528,119,511.60/792,179,267.40 = 505,728,130.80/x
  3. Step 3: Cross multiply
    528,119,511.60x = 792,179,267.40 × 505,728,130.80
  4. Step 4: Simplify right side
    528,119,511.60x = 400,627,340,160,715,392
  5. Step 5: Solve for x
    x = 400,627,340,160,715,392/528,119,511.60
  6. Step 6: Final answer
    x = 758,592,196.20

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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.