Home / 66,415,246.80-99,622,870.20-55,077,838.80

Finding the Fourth Proportional to 66,415,246.80, 99,622,870.20 and 55,077,838.80

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Solution

The fourth proportional to 66,415,246.80, 99,622,870.20 and 55,077,838.80 is: 82,616,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415,246.80 : 99,622,870.20 = 55,077,838.80 : x
  2. Step 2: Convert to fraction form
    66,415,246.80/99,622,870.20 = 55,077,838.80/x
  3. Step 3: Cross multiply
    66,415,246.80x = 99,622,870.20 × 55,077,838.80
  4. Step 4: Simplify right side
    66,415,246.80x = 5,487,012,385,668,924
  5. Step 5: Solve for x
    x = 5,487,012,385,668,924/66,415,246.80
  6. Step 6: Final answer
    x = 82,616,758.20

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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.