Home / 478,327,817.60-660,092,384.40-258,311,224.16

Finding the Fourth Proportional to 478,327,817.60, 660,092,384.40 and 258,311,224.16

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Solution

The fourth proportional to 478,327,817.60, 660,092,384.40 and 258,311,224.16 is: 356,469,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,327,817.60 : 660,092,384.40 = 258,311,224.16 : x
  2. Step 2: Convert to fraction form
    478,327,817.60/660,092,384.40 = 258,311,224.16/x
  3. Step 3: Cross multiply
    478,327,817.60x = 660,092,384.40 × 258,311,224.16
  4. Step 4: Simplify right side
    478,327,817.60x = 170,509,271,873,057,280
  5. Step 5: Solve for x
    x = 170,509,271,873,057,280/478,327,817.60
  6. Step 6: Final answer
    x = 356,469,487.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.