Home / 90,099,387.12-124,439,797.20-61,075,622.64

Finding the Fourth Proportional to 90,099,387.12, 124,439,797.20 and 61,075,622.64

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Solution

The fourth proportional to 90,099,387.12, 124,439,797.20 and 61,075,622.64 is: 84,353,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099,387.12 : 124,439,797.20 = 61,075,622.64 : x
  2. Step 2: Convert to fraction form
    90,099,387.12/124,439,797.20 = 61,075,622.64/x
  3. Step 3: Cross multiply
    90,099,387.12x = 124,439,797.20 × 61,075,622.64
  4. Step 4: Simplify right side
    90,099,387.12x = 7,600,238,095,185,329
  5. Step 5: Solve for x
    x = 7,600,238,095,185,329/90,099,387.12
  6. Step 6: Final answer
    x = 84,353,937.78

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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.