Home / 31,120,070.30-42,894,297.52-20,803,029.02

Finding the Fourth Proportional to 31,120,070.30, 42,894,297.52 and 20,803,029.02

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Solution

The fourth proportional to 31,120,070.30, 42,894,297.52 and 20,803,029.02 is: 28,673,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120,070.30 : 42,894,297.52 = 20,803,029.02 : x
  2. Step 2: Convert to fraction form
    31,120,070.30/42,894,297.52 = 20,803,029.02/x
  3. Step 3: Cross multiply
    31,120,070.30x = 42,894,297.52 × 20,803,029.02
  4. Step 4: Simplify right side
    31,120,070.30x = 892,331,315,834,595
  5. Step 5: Solve for x
    x = 892,331,315,834,595/31,120,070.30
  6. Step 6: Final answer
    x = 28,673,820.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.