Home / 100,439,191.52-138,621,211.91-61,303,710.20

Finding the Fourth Proportional to 100,439,191.52, 138,621,211.91 and 61,303,710.20

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Solution

The fourth proportional to 100,439,191.52, 138,621,211.91 and 61,303,710.20 is: 84,608,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,439,191.52 : 138,621,211.91 = 61,303,710.20 : x
  2. Step 2: Convert to fraction form
    100,439,191.52/138,621,211.91 = 61,303,710.20/x
  3. Step 3: Cross multiply
    100,439,191.52x = 138,621,211.91 × 61,303,710.20
  4. Step 4: Simplify right side
    100,439,191.52x = 8,497,994,603,075,839
  5. Step 5: Solve for x
    x = 8,497,994,603,075,839/100,439,191.52
  6. Step 6: Final answer
    x = 84,608,353.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.