Home / 77,989,152.51-107,631,089.96-43,185,081.15

Finding the Fourth Proportional to 77,989,152.51, 107,631,089.96 and 43,185,081.15

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Solution

The fourth proportional to 77,989,152.51, 107,631,089.96 and 43,185,081.15 is: 59,598,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989,152.51 : 107,631,089.96 = 43,185,081.15 : x
  2. Step 2: Convert to fraction form
    77,989,152.51/107,631,089.96 = 43,185,081.15/x
  3. Step 3: Cross multiply
    77,989,152.51x = 107,631,089.96 × 43,185,081.15
  4. Step 4: Simplify right side
    77,989,152.51x = 4,648,057,353,969,625
  5. Step 5: Solve for x
    x = 4,648,057,353,969,625/77,989,152.51
  6. Step 6: Final answer
    x = 59,598,767.32

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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.