Home / 381,702,995.46-526,772,685.69-287,450,854.58

Finding the Fourth Proportional to 381,702,995.46, 526,772,685.69 and 287,450,854.58

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Solution

The fourth proportional to 381,702,995.46, 526,772,685.69 and 287,450,854.58 is: 396,699,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,702,995.46 : 526,772,685.69 = 287,450,854.58 : x
  2. Step 2: Convert to fraction form
    381,702,995.46/526,772,685.69 = 287,450,854.58/x
  3. Step 3: Cross multiply
    381,702,995.46x = 526,772,685.69 × 287,450,854.58
  4. Step 4: Simplify right side
    381,702,995.46x = 151,421,258,672,309,152
  5. Step 5: Solve for x
    x = 151,421,258,672,309,152/381,702,995.46
  6. Step 6: Final answer
    x = 396,699,162.63

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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.