Home / 28,366,848,015.70-42,550,272,023.55-12,887,506,959.70

Finding the Fourth Proportional to 28,366,848,015.70, 42,550,272,023.55 and 12,887,506,959.70

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Solution

The fourth proportional to 28,366,848,015.70, 42,550,272,023.55 and 12,887,506,959.70 is: 19,331,260,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,848,015.70 : 42,550,272,023.55 = 12,887,506,959.70 : x
  2. Step 2: Convert to fraction form
    28,366,848,015.70/42,550,272,023.55 = 12,887,506,959.70/x
  3. Step 3: Cross multiply
    28,366,848,015.70x = 42,550,272,023.55 × 12,887,506,959.70
  4. Step 4: Simplify right side
    28,366,848,015.70x = 548,366,926,840,628,903,936
  5. Step 5: Solve for x
    x = 548,366,926,840,628,903,936/28,366,848,015.70
  6. Step 6: Final answer
    x = 19,331,260,439.55

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Double scale
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Similar ratio
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1.5x scale

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.