Home / 115,208,448.39-172,783,909.01-45,192,908.21

Finding the Fourth Proportional to 115,208,448.39, 172,783,909.01 and 45,192,908.21

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Solution

The fourth proportional to 115,208,448.39, 172,783,909.01 and 45,192,908.21 is: 67,778,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,208,448.39 : 172,783,909.01 = 45,192,908.21 : x
  2. Step 2: Convert to fraction form
    115,208,448.39/172,783,909.01 = 45,192,908.21/x
  3. Step 3: Cross multiply
    115,208,448.39x = 172,783,909.01 × 45,192,908.21
  4. Step 4: Simplify right side
    115,208,448.39x = 7,808,607,339,302,984
  5. Step 5: Solve for x
    x = 7,808,607,339,302,984/115,208,448.39
  6. Step 6: Final answer
    x = 67,778,079.20

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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.