Home / 85,824,466.90-128,736,700.35-31,960,633.30

Finding the Fourth Proportional to 85,824,466.90, 128,736,700.35 and 31,960,633.30

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Solution

The fourth proportional to 85,824,466.90, 128,736,700.35 and 31,960,633.30 is: 47,940,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,466.90 : 128,736,700.35 = 31,960,633.30 : x
  2. Step 2: Convert to fraction form
    85,824,466.90/128,736,700.35 = 31,960,633.30/x
  3. Step 3: Cross multiply
    85,824,466.90x = 128,736,700.35 × 31,960,633.30
  4. Step 4: Simplify right side
    85,824,466.90x = 4,114,506,472,138,331.50
  5. Step 5: Solve for x
    x = 4,114,506,472,138,331.50/85,824,466.90
  6. Step 6: Final answer
    x = 47,940,949.95

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Double scale
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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.