Home / 228,378,853.48-315,162,030.90-123,956,919.40

Finding the Fourth Proportional to 228,378,853.48, 315,162,030.90 and 123,956,919.40

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Solution

The fourth proportional to 228,378,853.48, 315,162,030.90 and 123,956,919.40 is: 171,060,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,378,853.48 : 315,162,030.90 = 123,956,919.40 : x
  2. Step 2: Convert to fraction form
    228,378,853.48/315,162,030.90 = 123,956,919.40/x
  3. Step 3: Cross multiply
    228,378,853.48x = 315,162,030.90 × 123,956,919.40
  4. Step 4: Simplify right side
    228,378,853.48x = 39,066,514,462,211,608
  5. Step 5: Solve for x
    x = 39,066,514,462,211,608/228,378,853.48
  6. Step 6: Final answer
    x = 171,060,121.67

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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.