Home / 85,824,467.90-128,736,701.85-31,960,634.30

Finding the Fourth Proportional to 85,824,467.90, 128,736,701.85 and 31,960,634.30

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Solution

The fourth proportional to 85,824,467.90, 128,736,701.85 and 31,960,634.30 is: 47,940,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,467.90 : 128,736,701.85 = 31,960,634.30 : x
  2. Step 2: Convert to fraction form
    85,824,467.90/128,736,701.85 = 31,960,634.30/x
  3. Step 3: Cross multiply
    85,824,467.90x = 128,736,701.85 × 31,960,634.30
  4. Step 4: Simplify right side
    85,824,467.90x = 4,114,506,648,815,983.50
  5. Step 5: Solve for x
    x = 4,114,506,648,815,983.50/85,824,467.90
  6. Step 6: Final answer
    x = 47,940,951.45

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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.