Home / 66,531,271.52-91,778,764.56-42,099,157.28

Finding the Fourth Proportional to 66,531,271.52, 91,778,764.56 and 42,099,157.28

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Solution

The fourth proportional to 66,531,271.52, 91,778,764.56 and 42,099,157.28 is: 58,075,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531,271.52 : 91,778,764.56 = 42,099,157.28 : x
  2. Step 2: Convert to fraction form
    66,531,271.52/91,778,764.56 = 42,099,157.28/x
  3. Step 3: Cross multiply
    66,531,271.52x = 91,778,764.56 × 42,099,157.28
  4. Step 4: Simplify right side
    66,531,271.52x = 3,863,808,644,175,530
  5. Step 5: Solve for x
    x = 3,863,808,644,175,530/66,531,271.52
  6. Step 6: Final answer
    x = 58,075,075.91

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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.