Home / 257,430,666.40-386,145,999.60-236,267,504.80

Finding the Fourth Proportional to 257,430,666.40, 386,145,999.60 and 236,267,504.80

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Solution

The fourth proportional to 257,430,666.40, 386,145,999.60 and 236,267,504.80 is: 354,401,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,430,666.40 : 386,145,999.60 = 236,267,504.80 : x
  2. Step 2: Convert to fraction form
    257,430,666.40/386,145,999.60 = 236,267,504.80/x
  3. Step 3: Cross multiply
    257,430,666.40x = 386,145,999.60 × 236,267,504.80
  4. Step 4: Simplify right side
    257,430,666.40x = 91,233,751,813,993,808
  5. Step 5: Solve for x
    x = 91,233,751,813,993,808/257,430,666.40
  6. Step 6: Final answer
    x = 354,401,257.20

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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.