Home / 30,715,359.88-42,386,917.56-16,776,712.07

Finding the Fourth Proportional to 30,715,359.88, 42,386,917.56 and 16,776,712.07

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Solution

The fourth proportional to 30,715,359.88, 42,386,917.56 and 16,776,712.07 is: 23,151,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715,359.88 : 42,386,917.56 = 16,776,712.07 : x
  2. Step 2: Convert to fraction form
    30,715,359.88/42,386,917.56 = 16,776,712.07/x
  3. Step 3: Cross multiply
    30,715,359.88x = 42,386,917.56 × 16,776,712.07
  4. Step 4: Simplify right side
    30,715,359.88x = 711,113,111,438,947
  5. Step 5: Solve for x
    x = 711,113,111,438,947/30,715,359.88
  6. Step 6: Final answer
    x = 23,151,710.23

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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.