Home / 31,730,053.15-43,771,358.23-20,723,245.74

Finding the Fourth Proportional to 31,730,053.15, 43,771,358.23 and 20,723,245.74

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Solution

The fourth proportional to 31,730,053.15, 43,771,358.23 and 20,723,245.74 is: 28,587,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730,053.15 : 43,771,358.23 = 20,723,245.74 : x
  2. Step 2: Convert to fraction form
    31,730,053.15/43,771,358.23 = 20,723,245.74/x
  3. Step 3: Cross multiply
    31,730,053.15x = 43,771,358.23 × 20,723,245.74
  4. Step 4: Simplify right side
    31,730,053.15x = 907,084,613,097,041.88
  5. Step 5: Solve for x
    x = 907,084,613,097,041.88/31,730,053.15
  6. Step 6: Final answer
    x = 28,587,554.16

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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.