Home / 255,846,421.37-353,068,059.12-138,371,748.23

Finding the Fourth Proportional to 255,846,421.37, 353,068,059.12 and 138,371,748.23

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Solution

The fourth proportional to 255,846,421.37, 353,068,059.12 and 138,371,748.23 is: 190,953,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,846,421.37 : 353,068,059.12 = 138,371,748.23 : x
  2. Step 2: Convert to fraction form
    255,846,421.37/353,068,059.12 = 138,371,748.23/x
  3. Step 3: Cross multiply
    255,846,421.37x = 353,068,059.12 × 138,371,748.23
  4. Step 4: Simplify right side
    255,846,421.37x = 48,854,644,584,607,392
  5. Step 5: Solve for x
    x = 48,854,644,584,607,392/255,846,421.37
  6. Step 6: Final answer
    x = 190,953,011.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.