Home / 105,179,365.78-157,776,981.30-31,397,320.36

Finding the Fourth Proportional to 105,179,365.78, 157,776,981.30 and 31,397,320.36

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Solution

The fourth proportional to 105,179,365.78, 157,776,981.30 and 31,397,320.36 is: 47,098,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,179,365.78 : 157,776,981.30 = 31,397,320.36 : x
  2. Step 2: Convert to fraction form
    105,179,365.78/157,776,981.30 = 31,397,320.36/x
  3. Step 3: Cross multiply
    105,179,365.78x = 157,776,981.30 × 31,397,320.36
  4. Step 4: Simplify right side
    105,179,365.78x = 4,953,774,427,309,830
  5. Step 5: Solve for x
    x = 4,953,774,427,309,830/105,179,365.78
  6. Step 6: Final answer
    x = 47,098,348.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.