Home / 419,031,447.70-628,156,341.21-142,493,688.46

Finding the Fourth Proportional to 419,031,447.70, 628,156,341.21 and 142,493,688.46

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Solution

The fourth proportional to 419,031,447.70, 628,156,341.21 and 142,493,688.46 is: 213,607,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,031,447.70 : 628,156,341.21 = 142,493,688.46 : x
  2. Step 2: Convert to fraction form
    419,031,447.70/628,156,341.21 = 142,493,688.46/x
  3. Step 3: Cross multiply
    419,031,447.70x = 628,156,341.21 × 142,493,688.46
  4. Step 4: Simplify right side
    419,031,447.70x = 89,508,313,988,551,216
  5. Step 5: Solve for x
    x = 89,508,313,988,551,216/419,031,447.70
  6. Step 6: Final answer
    x = 213,607,628.93

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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.