Home / 66,531,272.40-91,778,765.77-42,099,158.16

Finding the Fourth Proportional to 66,531,272.40, 91,778,765.77 and 42,099,158.16

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Solution

The fourth proportional to 66,531,272.40, 91,778,765.77 and 42,099,158.16 is: 58,075,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531,272.40 : 91,778,765.77 = 42,099,158.16 : x
  2. Step 2: Convert to fraction form
    66,531,272.40/91,778,765.77 = 42,099,158.16/x
  3. Step 3: Cross multiply
    66,531,272.40x = 91,778,765.77 × 42,099,158.16
  4. Step 4: Simplify right side
    66,531,272.40x = 3,863,808,775,880,823.50
  5. Step 5: Solve for x
    x = 3,863,808,775,880,823.50/66,531,272.40
  6. Step 6: Final answer
    x = 58,075,077.13

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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.