Home / 256,249,996.20-353,620,625.13-138,774,372.66

Finding the Fourth Proportional to 256,249,996.20, 353,620,625.13 and 138,774,372.66

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Solution

The fourth proportional to 256,249,996.20, 353,620,625.13 and 138,774,372.66 is: 191,506,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,249,996.20 : 353,620,625.13 = 138,774,372.66 : x
  2. Step 2: Convert to fraction form
    256,249,996.20/353,620,625.13 = 138,774,372.66/x
  3. Step 3: Cross multiply
    256,249,996.20x = 353,620,625.13 × 138,774,372.66
  4. Step 4: Simplify right side
    256,249,996.20x = 49,073,480,412,052,776
  5. Step 5: Solve for x
    x = 49,073,480,412,052,776/256,249,996.20
  6. Step 6: Final answer
    x = 191,506,267.86

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