Home / 66,531,271.40-91,778,764.39-42,099,157.16

Finding the Fourth Proportional to 66,531,271.40, 91,778,764.39 and 42,099,157.16

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Solution

The fourth proportional to 66,531,271.40, 91,778,764.39 and 42,099,157.16 is: 58,075,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531,271.40 : 91,778,764.39 = 42,099,157.16 : x
  2. Step 2: Convert to fraction form
    66,531,271.40/91,778,764.39 = 42,099,157.16/x
  3. Step 3: Cross multiply
    66,531,271.40x = 91,778,764.39 × 42,099,157.16
  4. Step 4: Simplify right side
    66,531,271.40x = 3,863,808,625,441,080
  5. Step 5: Solve for x
    x = 3,863,808,625,441,080/66,531,271.40
  6. Step 6: Final answer
    x = 58,075,075.74

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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.