Home / 436,890,023.40-655,335,035.10-393,052,045.80

Finding the Fourth Proportional to 436,890,023.40, 655,335,035.10 and 393,052,045.80

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Solution

The fourth proportional to 436,890,023.40, 655,335,035.10 and 393,052,045.80 is: 589,578,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,890,023.40 : 655,335,035.10 = 393,052,045.80 : x
  2. Step 2: Convert to fraction form
    436,890,023.40/655,335,035.10 = 393,052,045.80/x
  3. Step 3: Cross multiply
    436,890,023.40x = 655,335,035.10 × 393,052,045.80
  4. Step 4: Simplify right side
    436,890,023.40x = 257,580,776,230,469,824
  5. Step 5: Solve for x
    x = 257,580,776,230,469,824/436,890,023.40
  6. Step 6: Final answer
    x = 589,578,068.70

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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.