Home / 90,663,714.95-125,116,350.34-51,507,640.30

Finding the Fourth Proportional to 90,663,714.95, 125,116,350.34 and 51,507,640.30

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Solution

The fourth proportional to 90,663,714.95, 125,116,350.34 and 51,507,640.30 is: 71,080,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,663,714.95 : 125,116,350.34 = 51,507,640.30 : x
  2. Step 2: Convert to fraction form
    90,663,714.95/125,116,350.34 = 51,507,640.30/x
  3. Step 3: Cross multiply
    90,663,714.95x = 125,116,350.34 × 51,507,640.30
  4. Step 4: Simplify right side
    90,663,714.95x = 6,444,447,968,961,503
  5. Step 5: Solve for x
    x = 6,444,447,968,961,503/90,663,714.95
  6. Step 6: Final answer
    x = 71,080,784.33

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1.5x scale

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.