Home / 499,928,307.86-749,928,383.40-172,399,109.24

Finding the Fourth Proportional to 499,928,307.86, 749,928,383.40 and 172,399,109.24

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Solution

The fourth proportional to 499,928,307.86, 749,928,383.40 and 172,399,109.24 is: 258,611,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,928,307.86 : 749,928,383.40 = 172,399,109.24 : x
  2. Step 2: Convert to fraction form
    499,928,307.86/749,928,383.40 = 172,399,109.24/x
  3. Step 3: Cross multiply
    499,928,307.86x = 749,928,383.40 × 172,399,109.24
  4. Step 4: Simplify right side
    499,928,307.86x = 129,286,985,291,953,200
  5. Step 5: Solve for x
    x = 129,286,985,291,953,200/499,928,307.86
  6. Step 6: Final answer
    x = 258,611,051.34

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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.