Home / 143,139,417.30-214,709,125.97-66,436,953.30

Finding the Fourth Proportional to 143,139,417.30, 214,709,125.97 and 66,436,953.30

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Solution

The fourth proportional to 143,139,417.30, 214,709,125.97 and 66,436,953.30 is: 99,655,429.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,417.30 : 214,709,125.97 = 66,436,953.30 : x
  2. Step 2: Convert to fraction form
    143,139,417.30/214,709,125.97 = 66,436,953.30/x
  3. Step 3: Cross multiply
    143,139,417.30x = 214,709,125.97 × 66,436,953.30
  4. Step 4: Simplify right side
    143,139,417.30x = 14,264,620,174,820,522
  5. Step 5: Solve for x
    x = 14,264,620,174,820,522/143,139,417.30
  6. Step 6: Final answer
    x = 99,655,429.96

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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.