Home / 38,850,159.32-53,612,947.12-21,209,061.87

Finding the Fourth Proportional to 38,850,159.32, 53,612,947.12 and 21,209,061.87

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Solution

The fourth proportional to 38,850,159.32, 53,612,947.12 and 21,209,061.87 is: 29,268,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,850,159.32 : 53,612,947.12 = 21,209,061.87 : x
  2. Step 2: Convert to fraction form
    38,850,159.32/53,612,947.12 = 21,209,061.87/x
  3. Step 3: Cross multiply
    38,850,159.32x = 53,612,947.12 × 21,209,061.87
  4. Step 4: Simplify right side
    38,850,159.32x = 1,137,080,312,501,118.25
  5. Step 5: Solve for x
    x = 1,137,080,312,501,118.25/38,850,159.32
  6. Step 6: Final answer
    x = 29,268,356.49

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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.