Home / 248,212,159.31-372,059,604.33-138,877,030.91

Finding the Fourth Proportional to 248,212,159.31, 372,059,604.33 and 138,877,030.91

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Solution

The fourth proportional to 248,212,159.31, 372,059,604.33 and 138,877,030.91 is: 208,170,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,212,159.31 : 372,059,604.33 = 138,877,030.91 : x
  2. Step 2: Convert to fraction form
    248,212,159.31/372,059,604.33 = 138,877,030.91/x
  3. Step 3: Cross multiply
    248,212,159.31x = 372,059,604.33 × 138,877,030.91
  4. Step 4: Simplify right side
    248,212,159.31x = 51,670,533,170,899,776
  5. Step 5: Solve for x
    x = 51,670,533,170,899,776/248,212,159.31
  6. Step 6: Final answer
    x = 208,170,837.86

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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.