Home / 121,482,738.96-167,646,188.52-66,478,598.16

Finding the Fourth Proportional to 121,482,738.96, 167,646,188.52 and 66,478,598.16

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Solution

The fourth proportional to 121,482,738.96, 167,646,188.52 and 66,478,598.16 is: 91,740,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,482,738.96 : 167,646,188.52 = 66,478,598.16 : x
  2. Step 2: Convert to fraction form
    121,482,738.96/167,646,188.52 = 66,478,598.16/x
  3. Step 3: Cross multiply
    121,482,738.96x = 167,646,188.52 × 66,478,598.16
  4. Step 4: Simplify right side
    121,482,738.96x = 11,144,883,599,676,686
  5. Step 5: Solve for x
    x = 11,144,883,599,676,686/121,482,738.96
  6. Step 6: Final answer
    x = 91,740,470.25

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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.