Home / 21,261,582,068.40-31,889,349,793.80-7,287,848,794.80

Finding the Fourth Proportional to 21,261,582,068.40, 31,889,349,793.80 and 7,287,848,794.80

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Solution

The fourth proportional to 21,261,582,068.40, 31,889,349,793.80 and 7,287,848,794.80 is: 10,930,736,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,582,068.40 : 31,889,349,793.80 = 7,287,848,794.80 : x
  2. Step 2: Convert to fraction form
    21,261,582,068.40/31,889,349,793.80 = 7,287,848,794.80/x
  3. Step 3: Cross multiply
    21,261,582,068.40x = 31,889,349,793.80 × 7,287,848,794.80
  4. Step 4: Simplify right side
    21,261,582,068.40x = 232,404,759,461,700,960,256
  5. Step 5: Solve for x
    x = 232,404,759,461,700,960,256/21,261,582,068.40
  6. Step 6: Final answer
    x = 10,930,736,890.32

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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.