Home / 39,109,064.04-53,967,994.20-21,705,421.05

Finding the Fourth Proportional to 39,109,064.04, 53,967,994.20 and 21,705,421.05

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Solution

The fourth proportional to 39,109,064.04, 53,967,994.20 and 21,705,421.05 is: 29,952,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109,064.04 : 53,967,994.20 = 21,705,421.05 : x
  2. Step 2: Convert to fraction form
    39,109,064.04/53,967,994.20 = 21,705,421.05/x
  3. Step 3: Cross multiply
    39,109,064.04x = 53,967,994.20 × 21,705,421.05
  4. Step 4: Simplify right side
    39,109,064.04x = 1,171,398,037,334,958
  5. Step 5: Solve for x
    x = 1,171,398,037,334,958/39,109,064.04
  6. Step 6: Final answer
    x = 29,952,085.69

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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.