Home / 28,366,848,007.70-42,550,272,011.55-12,887,506,951.70

Finding the Fourth Proportional to 28,366,848,007.70, 42,550,272,011.55 and 12,887,506,951.70

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Solution

The fourth proportional to 28,366,848,007.70, 42,550,272,011.55 and 12,887,506,951.70 is: 19,331,260,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,848,007.70 : 42,550,272,011.55 = 12,887,506,951.70 : x
  2. Step 2: Convert to fraction form
    28,366,848,007.70/42,550,272,011.55 = 12,887,506,951.70/x
  3. Step 3: Cross multiply
    28,366,848,007.70x = 42,550,272,011.55 × 12,887,506,951.70
  4. Step 4: Simplify right side
    28,366,848,007.70x = 548,366,926,345,576,644,608
  5. Step 5: Solve for x
    x = 548,366,926,345,576,644,608/28,366,848,007.70
  6. Step 6: Final answer
    x = 19,331,260,427.55

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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.