Home / 122,528,181.16-169,083,967.08-66,772,417.60

Finding the Fourth Proportional to 122,528,181.16, 169,083,967.08 and 66,772,417.60

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Solution

The fourth proportional to 122,528,181.16, 169,083,967.08 and 66,772,417.60 is: 92,143,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,528,181.16 : 169,083,967.08 = 66,772,417.60 : x
  2. Step 2: Convert to fraction form
    122,528,181.16/169,083,967.08 = 66,772,417.60/x
  3. Step 3: Cross multiply
    122,528,181.16x = 169,083,967.08 × 66,772,417.60
  4. Step 4: Simplify right side
    122,528,181.16x = 11,290,145,259,330,414
  5. Step 5: Solve for x
    x = 11,290,145,259,330,414/122,528,181.16
  6. Step 6: Final answer
    x = 92,143,253.51

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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.