Home / 279,886,916.12-386,383,779.28-174,074,437.76

Finding the Fourth Proportional to 279,886,916.12, 386,383,779.28 and 174,074,437.76

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Solution

The fourth proportional to 279,886,916.12, 386,383,779.28 and 174,074,437.76 is: 240,309,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,886,916.12 : 386,383,779.28 = 174,074,437.76 : x
  2. Step 2: Convert to fraction form
    279,886,916.12/386,383,779.28 = 174,074,437.76/x
  3. Step 3: Cross multiply
    279,886,916.12x = 386,383,779.28 × 174,074,437.76
  4. Step 4: Simplify right side
    279,886,916.12x = 67,259,539,137,749,928
  5. Step 5: Solve for x
    x = 67,259,539,137,749,928/279,886,916.12
  6. Step 6: Final answer
    x = 240,309,693.89

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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.