Home / 207,102,399.12-285,799,512-113,018,407.56

Finding the Fourth Proportional to 207,102,399.12, 285,799,512 and 113,018,407.56

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Solution

The fourth proportional to 207,102,399.12, 285,799,512 and 113,018,407.56 is: 155,964,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,102,399.12 : 285,799,512 = 113,018,407.56 : x
  2. Step 2: Convert to fraction form
    207,102,399.12/285,799,512 = 113,018,407.56/x
  3. Step 3: Cross multiply
    207,102,399.12x = 285,799,512 × 113,018,407.56
  4. Step 4: Simplify right side
    207,102,399.12x = 32,300,605,727,665,112
  5. Step 5: Solve for x
    x = 32,300,605,727,665,112/207,102,399.12
  6. Step 6: Final answer
    x = 155,964,420.81

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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.