Home / 81,299,486,443.30-112,196,319,142.53-48,751,999,139.74

Finding the Fourth Proportional to 81,299,486,443.30, 112,196,319,142.53 and 48,751,999,139.74

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Solution

The fourth proportional to 81,299,486,443.30, 112,196,319,142.53 and 48,751,999,139.74 is: 67,279,574,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,299,486,443.30 : 112,196,319,142.53 = 48,751,999,139.74 : x
  2. Step 2: Convert to fraction form
    81,299,486,443.30/112,196,319,142.53 = 48,751,999,139.74/x
  3. Step 3: Cross multiply
    81,299,486,443.30x = 112,196,319,142.53 × 48,751,999,139.74
  4. Step 4: Simplify right side
    81,299,486,443.30x = 5,469,794,854,318,617,133,056
  5. Step 5: Solve for x
    x = 5,469,794,854,318,617,133,056/81,299,486,443.30
  6. Step 6: Final answer
    x = 67,279,574,491.94

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Double scale
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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.