Home / 100,321,803.02-138,433,018.74-56,259,734.46

Finding the Fourth Proportional to 100,321,803.02, 138,433,018.74 and 56,259,734.46

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Solution

The fourth proportional to 100,321,803.02, 138,433,018.74 and 56,259,734.46 is: 77,632,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,321,803.02 : 138,433,018.74 = 56,259,734.46 : x
  2. Step 2: Convert to fraction form
    100,321,803.02/138,433,018.74 = 56,259,734.46/x
  3. Step 3: Cross multiply
    100,321,803.02x = 138,433,018.74 × 56,259,734.46
  4. Step 4: Simplify right side
    100,321,803.02x = 7,788,204,874,808,604
  5. Step 5: Solve for x
    x = 7,788,204,874,808,604/100,321,803.02
  6. Step 6: Final answer
    x = 77,632,225.90

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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.