Home / 142,236,907.20-213,355,360.80-136,264,939.20

Finding the Fourth Proportional to 142,236,907.20, 213,355,360.80 and 136,264,939.20

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Solution

The fourth proportional to 142,236,907.20, 213,355,360.80 and 136,264,939.20 is: 204,397,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,236,907.20 : 213,355,360.80 = 136,264,939.20 : x
  2. Step 2: Convert to fraction form
    142,236,907.20/213,355,360.80 = 136,264,939.20/x
  3. Step 3: Cross multiply
    142,236,907.20x = 213,355,360.80 × 136,264,939.20
  4. Step 4: Simplify right side
    142,236,907.20x = 29,072,855,267,406,064
  5. Step 5: Solve for x
    x = 29,072,855,267,406,064/142,236,907.20
  6. Step 6: Final answer
    x = 204,397,408.80

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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.