Home / 358,419,349.08-537,685,710.66-128,383,340.76

Finding the Fourth Proportional to 358,419,349.08, 537,685,710.66 and 128,383,340.76

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Solution

The fourth proportional to 358,419,349.08, 537,685,710.66 and 128,383,340.76 is: 192,595,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,419,349.08 : 537,685,710.66 = 128,383,340.76 : x
  2. Step 2: Convert to fraction form
    358,419,349.08/537,685,710.66 = 128,383,340.76/x
  3. Step 3: Cross multiply
    358,419,349.08x = 537,685,710.66 × 128,383,340.76
  4. Step 4: Simplify right side
    358,419,349.08x = 69,029,887,813,445,544
  5. Step 5: Solve for x
    x = 69,029,887,813,445,544/358,419,349.08
  6. Step 6: Final answer
    x = 192,595,316.05

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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.