Home / 143,905,605.21-215,858,444.57-40,290,075.63

Finding the Fourth Proportional to 143,905,605.21, 215,858,444.57 and 40,290,075.63

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Solution

The fourth proportional to 143,905,605.21, 215,858,444.57 and 40,290,075.63 is: 60,435,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,905,605.21 : 215,858,444.57 = 40,290,075.63 : x
  2. Step 2: Convert to fraction form
    143,905,605.21/215,858,444.57 = 40,290,075.63/x
  3. Step 3: Cross multiply
    143,905,605.21x = 215,858,444.57 × 40,290,075.63
  4. Step 4: Simplify right side
    143,905,605.21x = 8,696,953,056,898,013
  5. Step 5: Solve for x
    x = 8,696,953,056,898,013/143,905,605.21
  6. Step 6: Final answer
    x = 60,435,123.73

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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.