Home / 315,887,609.78-474,036,015.82-170,421,579.26

Finding the Fourth Proportional to 315,887,609.78, 474,036,015.82 and 170,421,579.26

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Solution

The fourth proportional to 315,887,609.78, 474,036,015.82 and 170,421,579.26 is: 255,742,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,887,609.78 : 474,036,015.82 = 170,421,579.26 : x
  2. Step 2: Convert to fraction form
    315,887,609.78/474,036,015.82 = 170,421,579.26/x
  3. Step 3: Cross multiply
    315,887,609.78x = 474,036,015.82 × 170,421,579.26
  4. Step 4: Simplify right side
    315,887,609.78x = 80,785,966,442,162,736
  5. Step 5: Solve for x
    x = 80,785,966,442,162,736/315,887,609.78
  6. Step 6: Final answer
    x = 255,742,751.35

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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.