Home / 487,575,428.80-731,363,143.20-229,295,102.80

Finding the Fourth Proportional to 487,575,428.80, 731,363,143.20 and 229,295,102.80

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Solution

The fourth proportional to 487,575,428.80, 731,363,143.20 and 229,295,102.80 is: 343,942,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,575,428.80 : 731,363,143.20 = 229,295,102.80 : x
  2. Step 2: Convert to fraction form
    487,575,428.80/731,363,143.20 = 229,295,102.80/x
  3. Step 3: Cross multiply
    487,575,428.80x = 731,363,143.20 × 229,295,102.80
  4. Step 4: Simplify right side
    487,575,428.80x = 167,697,987,104,175,136
  5. Step 5: Solve for x
    x = 167,697,987,104,175,136/487,575,428.80
  6. Step 6: Final answer
    x = 343,942,654.20

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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.