Home / 290,303,998.20-435,493,322.10-144,811,927.80

Finding the Fourth Proportional to 290,303,998.20, 435,493,322.10 and 144,811,927.80

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Solution

The fourth proportional to 290,303,998.20, 435,493,322.10 and 144,811,927.80 is: 217,236,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,998.20 : 435,493,322.10 = 144,811,927.80 : x
  2. Step 2: Convert to fraction form
    290,303,998.20/435,493,322.10 = 144,811,927.80/x
  3. Step 3: Cross multiply
    290,303,998.20x = 435,493,322.10 × 144,811,927.80
  4. Step 4: Simplify right side
    290,303,998.20x = 63,064,627,517,327,352
  5. Step 5: Solve for x
    x = 63,064,627,517,327,352/290,303,998.20
  6. Step 6: Final answer
    x = 217,236,510.38

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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.