Home / 31,120,070.55-42,894,297.86-20,803,029.27

Finding the Fourth Proportional to 31,120,070.55, 42,894,297.86 and 20,803,029.27

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Solution

The fourth proportional to 31,120,070.55, 42,894,297.86 and 20,803,029.27 is: 28,673,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120,070.55 : 42,894,297.86 = 20,803,029.27 : x
  2. Step 2: Convert to fraction form
    31,120,070.55/42,894,297.86 = 20,803,029.27/x
  3. Step 3: Cross multiply
    31,120,070.55x = 42,894,297.86 × 20,803,029.27
  4. Step 4: Simplify right side
    31,120,070.55x = 892,331,333,735,214.38
  5. Step 5: Solve for x
    x = 892,331,333,735,214.38/31,120,070.55
  6. Step 6: Final answer
    x = 28,673,821.05

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1.5x scale

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.