Home / 12,838,885,984.64-19,262,916,362.56-7,806,980,080.33

Finding the Fourth Proportional to 12,838,885,984.64, 19,262,916,362.56 and 7,806,980,080.33

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Solution

The fourth proportional to 12,838,885,984.64, 19,262,916,362.56 and 7,806,980,080.33 is: 11,713,259,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838,885,984.64 : 19,262,916,362.56 = 7,806,980,080.33 : x
  2. Step 2: Convert to fraction form
    12,838,885,984.64/19,262,916,362.56 = 7,806,980,080.33/x
  3. Step 3: Cross multiply
    12,838,885,984.64x = 19,262,916,362.56 × 7,806,980,080.33
  4. Step 4: Simplify right side
    12,838,885,984.64x = 150,385,204,331,487,330,304
  5. Step 5: Solve for x
    x = 150,385,204,331,487,330,304/12,838,885,984.64
  6. Step 6: Final answer
    x = 11,713,259,585.87

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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.