Home / 355,377,009.60-533,380,442.40-209,628,331.20

Finding the Fourth Proportional to 355,377,009.60, 533,380,442.40 and 209,628,331.20

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Solution

The fourth proportional to 355,377,009.60, 533,380,442.40 and 209,628,331.20 is: 314,628,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,377,009.60 : 533,380,442.40 = 209,628,331.20 : x
  2. Step 2: Convert to fraction form
    355,377,009.60/533,380,442.40 = 209,628,331.20/x
  3. Step 3: Cross multiply
    355,377,009.60x = 533,380,442.40 × 209,628,331.20
  4. Step 4: Simplify right side
    355,377,009.60x = 111,811,652,035,029,712
  5. Step 5: Solve for x
    x = 111,811,652,035,029,712/355,377,009.60
  6. Step 6: Final answer
    x = 314,628,265.24

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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.