Home / 38,965,509.50-53,772,881.40-21,563,473.95

Finding the Fourth Proportional to 38,965,509.50, 53,772,881.40 and 21,563,473.95

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Solution

The fourth proportional to 38,965,509.50, 53,772,881.40 and 21,563,473.95 is: 29,757,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,965,509.50 : 53,772,881.40 = 21,563,473.95 : x
  2. Step 2: Convert to fraction form
    38,965,509.50/53,772,881.40 = 21,563,473.95/x
  3. Step 3: Cross multiply
    38,965,509.50x = 53,772,881.40 × 21,563,473.95
  4. Step 4: Simplify right side
    38,965,509.50x = 1,159,530,127,285,339.50
  5. Step 5: Solve for x
    x = 1,159,530,127,285,339.50/38,965,509.50
  6. Step 6: Final answer
    x = 29,757,858.74

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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.