Home / 77,711,881.15-107,240,261.47-42,903,939.07

Finding the Fourth Proportional to 77,711,881.15, 107,240,261.47 and 42,903,939.07

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Solution

The fourth proportional to 77,711,881.15, 107,240,261.47 and 42,903,939.07 is: 59,206,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711,881.15 : 107,240,261.47 = 42,903,939.07 : x
  2. Step 2: Convert to fraction form
    77,711,881.15/107,240,261.47 = 42,903,939.07/x
  3. Step 3: Cross multiply
    77,711,881.15x = 107,240,261.47 × 42,903,939.07
  4. Step 4: Simplify right side
    77,711,881.15x = 4,601,029,643,959,749
  5. Step 5: Solve for x
    x = 4,601,029,643,959,749/77,711,881.15
  6. Step 6: Final answer
    x = 59,206,257.47

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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.