Home / 143,139,318.30-214,708,977.45-66,436,854.30

Finding the Fourth Proportional to 143,139,318.30, 214,708,977.45 and 66,436,854.30

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Solution

The fourth proportional to 143,139,318.30, 214,708,977.45 and 66,436,854.30 is: 99,655,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,318.30 : 214,708,977.45 = 66,436,854.30 : x
  2. Step 2: Convert to fraction form
    143,139,318.30/214,708,977.45 = 66,436,854.30/x
  3. Step 3: Cross multiply
    143,139,318.30x = 214,708,977.45 × 66,436,854.30
  4. Step 4: Simplify right side
    143,139,318.30x = 14,264,589,051,747,634
  5. Step 5: Solve for x
    x = 14,264,589,051,747,634/143,139,318.30
  6. Step 6: Final answer
    x = 99,655,281.45

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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.