Home / 143,747,443.40-215,621,165.10-67,219,939.40

Finding the Fourth Proportional to 143,747,443.40, 215,621,165.10 and 67,219,939.40

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Solution

The fourth proportional to 143,747,443.40, 215,621,165.10 and 67,219,939.40 is: 100,829,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,747,443.40 : 215,621,165.10 = 67,219,939.40 : x
  2. Step 2: Convert to fraction form
    143,747,443.40/215,621,165.10 = 67,219,939.40/x
  3. Step 3: Cross multiply
    143,747,443.40x = 215,621,165.10 × 67,219,939.40
  4. Step 4: Simplify right side
    143,747,443.40x = 14,494,041,651,379,396
  5. Step 5: Solve for x
    x = 14,494,041,651,379,396/143,747,443.40
  6. Step 6: Final answer
    x = 100,829,909.10

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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.