Home / 429,801,911.70-644,839,154.91-153,447,200.34

Finding the Fourth Proportional to 429,801,911.70, 644,839,154.91 and 153,447,200.34

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Solution

The fourth proportional to 429,801,911.70, 644,839,154.91 and 153,447,200.34 is: 230,219,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,801,911.70 : 644,839,154.91 = 153,447,200.34 : x
  2. Step 2: Convert to fraction form
    429,801,911.70/644,839,154.91 = 153,447,200.34/x
  3. Step 3: Cross multiply
    429,801,911.70x = 644,839,154.91 × 153,447,200.34
  4. Step 4: Simplify right side
    429,801,911.70x = 98,948,762,990,551,056
  5. Step 5: Solve for x
    x = 98,948,762,990,551,056/429,801,911.70
  6. Step 6: Final answer
    x = 230,219,457.61

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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.