Home / 66,531,273.52-91,778,767.32-42,099,159.28

Finding the Fourth Proportional to 66,531,273.52, 91,778,767.32 and 42,099,159.28

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Solution

The fourth proportional to 66,531,273.52, 91,778,767.32 and 42,099,159.28 is: 58,075,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531,273.52 : 91,778,767.32 = 42,099,159.28 : x
  2. Step 2: Convert to fraction form
    66,531,273.52/91,778,767.32 = 42,099,159.28/x
  3. Step 3: Cross multiply
    66,531,273.52x = 91,778,767.32 × 42,099,159.28
  4. Step 4: Simplify right side
    66,531,273.52x = 3,863,808,943,926,738.50
  5. Step 5: Solve for x
    x = 3,863,808,943,926,738.50/66,531,273.52
  6. Step 6: Final answer
    x = 58,075,078.67

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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.