Home / 38,721,569.95-53,433,738.18-21,314,515.24

Finding the Fourth Proportional to 38,721,569.95, 53,433,738.18 and 21,314,515.24

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Solution

The fourth proportional to 38,721,569.95, 53,433,738.18 and 21,314,515.24 is: 29,412,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721,569.95 : 53,433,738.18 = 21,314,515.24 : x
  2. Step 2: Convert to fraction form
    38,721,569.95/53,433,738.18 = 21,314,515.24/x
  3. Step 3: Cross multiply
    38,721,569.95x = 53,433,738.18 × 21,314,515.24
  4. Step 4: Simplify right side
    38,721,569.95x = 1,138,914,226,767,779.75
  5. Step 5: Solve for x
    x = 1,138,914,226,767,779.75/38,721,569.95
  6. Step 6: Final answer
    x = 29,412,914.51

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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.