Home / 143,139,419.80-214,709,129.70-66,436,955.80

Finding the Fourth Proportional to 143,139,419.80, 214,709,129.70 and 66,436,955.80

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Solution

The fourth proportional to 143,139,419.80, 214,709,129.70 and 66,436,955.80 is: 99,655,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,419.80 : 214,709,129.70 = 66,436,955.80 : x
  2. Step 2: Convert to fraction form
    143,139,419.80/214,709,129.70 = 66,436,955.80/x
  3. Step 3: Cross multiply
    143,139,419.80x = 214,709,129.70 × 66,436,955.80
  4. Step 4: Simplify right side
    143,139,419.80x = 14,264,620,959,735,366
  5. Step 5: Solve for x
    x = 14,264,620,959,735,366/143,139,419.80
  6. Step 6: Final answer
    x = 99,655,433.70

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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.