Home / 38,999,140.80-53,818,780.48-21,595,485.12

Finding the Fourth Proportional to 38,999,140.80, 53,818,780.48 and 21,595,485.12

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Solution

The fourth proportional to 38,999,140.80, 53,818,780.48 and 21,595,485.12 is: 29,801,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999,140.80 : 53,818,780.48 = 21,595,485.12 : x
  2. Step 2: Convert to fraction form
    38,999,140.80/53,818,780.48 = 21,595,485.12/x
  3. Step 3: Cross multiply
    38,999,140.80x = 53,818,780.48 × 21,595,485.12
  4. Step 4: Simplify right side
    38,999,140.80x = 1,162,242,673,032,386.50
  5. Step 5: Solve for x
    x = 1,162,242,673,032,386.50/38,999,140.80
  6. Step 6: Final answer
    x = 29,801,750.74

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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.