Home / 641,324,679.61-885,064,526.88-359,064,651.01

Finding the Fourth Proportional to 641,324,679.61, 885,064,526.88 and 359,064,651.01

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Solution

The fourth proportional to 641,324,679.61, 885,064,526.88 and 359,064,651.01 is: 495,529,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,324,679.61 : 885,064,526.88 = 359,064,651.01 : x
  2. Step 2: Convert to fraction form
    641,324,679.61/885,064,526.88 = 359,064,651.01/x
  3. Step 3: Cross multiply
    641,324,679.61x = 885,064,526.88 × 359,064,651.01
  4. Step 4: Simplify right side
    641,324,679.61x = 317,795,385,462,519,296
  5. Step 5: Solve for x
    x = 317,795,385,462,519,296/641,324,679.61
  6. Step 6: Final answer
    x = 495,529,636.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.