Home / 115,209,815.81-172,814,898.69-47,052,507.56

Finding the Fourth Proportional to 115,209,815.81, 172,814,898.69 and 47,052,507.56

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Solution

The fourth proportional to 115,209,815.81, 172,814,898.69 and 47,052,507.56 is: 70,578,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209,815.81 : 172,814,898.69 = 47,052,507.56 : x
  2. Step 2: Convert to fraction form
    115,209,815.81/172,814,898.69 = 47,052,507.56/x
  3. Step 3: Cross multiply
    115,209,815.81x = 172,814,898.69 × 47,052,507.56
  4. Step 4: Simplify right side
    115,209,815.81x = 8,131,374,326,227,784
  5. Step 5: Solve for x
    x = 8,131,374,326,227,784/115,209,815.81
  6. Step 6: Final answer
    x = 70,578,832.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.