Home / 279,257,383,738.14-418,944,905,761.41-90,588,547,602.78

Finding the Fourth Proportional to 279,257,383,738.14, 418,944,905,761.41 and 90,588,547,602.78

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Solution

The fourth proportional to 279,257,383,738.14, 418,944,905,761.41 and 90,588,547,602.78 is: 135,901,905,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,257,383,738.14 : 418,944,905,761.41 = 90,588,547,602.78 : x
  2. Step 2: Convert to fraction form
    279,257,383,738.14/418,944,905,761.41 = 90,588,547,602.78/x
  3. Step 3: Cross multiply
    279,257,383,738.14x = 418,944,905,761.41 × 90,588,547,602.78
  4. Step 4: Simplify right side
    279,257,383,738.14x = 37,951,610,538,509,666,877,440
  5. Step 5: Solve for x
    x = 37,951,610,538,509,666,877,440/279,257,383,738.14
  6. Step 6: Final answer
    x = 135,901,905,369.48

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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.