Home / 543,968,999.20-815,953,498.80-459,788,744.80

Finding the Fourth Proportional to 543,968,999.20, 815,953,498.80 and 459,788,744.80

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Solution

The fourth proportional to 543,968,999.20, 815,953,498.80 and 459,788,744.80 is: 689,683,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,968,999.20 : 815,953,498.80 = 459,788,744.80 : x
  2. Step 2: Convert to fraction form
    543,968,999.20/815,953,498.80 = 459,788,744.80/x
  3. Step 3: Cross multiply
    543,968,999.20x = 815,953,498.80 × 459,788,744.80
  4. Step 4: Simplify right side
    543,968,999.20x = 375,166,235,028,420,288
  5. Step 5: Solve for x
    x = 375,166,235,028,420,288/543,968,999.20
  6. Step 6: Final answer
    x = 689,683,117.20

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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.