Home / 38,528,947.06-53,172,335.73-21,359,539.06

Finding the Fourth Proportional to 38,528,947.06, 53,172,335.73 and 21,359,539.06

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Solution

The fourth proportional to 38,528,947.06, 53,172,335.73 and 21,359,539.06 is: 29,477,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528,947.06 : 53,172,335.73 = 21,359,539.06 : x
  2. Step 2: Convert to fraction form
    38,528,947.06/53,172,335.73 = 21,359,539.06/x
  3. Step 3: Cross multiply
    38,528,947.06x = 53,172,335.73 × 21,359,539.06
  4. Step 4: Simplify right side
    38,528,947.06x = 1,135,736,581,936,368.50
  5. Step 5: Solve for x
    x = 1,135,736,581,936,368.50/38,528,947.06
  6. Step 6: Final answer
    x = 29,477,488.19

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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.