Home / 85,180,772.35-117,646,429.77-57,254,999.81

Finding the Fourth Proportional to 85,180,772.35, 117,646,429.77 and 57,254,999.81

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Solution

The fourth proportional to 85,180,772.35, 117,646,429.77 and 57,254,999.81 is: 79,077,074.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,180,772.35 : 117,646,429.77 = 57,254,999.81 : x
  2. Step 2: Convert to fraction form
    85,180,772.35/117,646,429.77 = 57,254,999.81/x
  3. Step 3: Cross multiply
    85,180,772.35x = 117,646,429.77 × 57,254,999.81
  4. Step 4: Simplify right side
    85,180,772.35x = 6,735,846,314,128,528
  5. Step 5: Solve for x
    x = 6,735,846,314,128,528/85,180,772.35
  6. Step 6: Final answer
    x = 79,077,074.89

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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.