Home / 77,972,697-107,598,058.98-42,683,675.46

Finding the Fourth Proportional to 77,972,697, 107,598,058.98 and 42,683,675.46

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Solution

The fourth proportional to 77,972,697, 107,598,058.98 and 42,683,675.46 is: 58,901,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972,697 : 107,598,058.98 = 42,683,675.46 : x
  2. Step 2: Convert to fraction form
    77,972,697/107,598,058.98 = 42,683,675.46/x
  3. Step 3: Cross multiply
    77,972,697x = 107,598,058.98 × 42,683,675.46
  4. Step 4: Simplify right side
    77,972,697x = 4,592,680,629,628,259
  5. Step 5: Solve for x
    x = 4,592,680,629,628,259/77,972,697
  6. Step 6: Final answer
    x = 58,901,138.56

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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.