Home / 1,265,838,502.32-1,898,684,211.96-380,504,743.92

Finding the Fourth Proportional to 1,265,838,502.32, 1,898,684,211.96 and 380,504,743.92

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Solution

The fourth proportional to 1,265,838,502.32, 1,898,684,211.96 and 380,504,743.92 is: 570,735,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,838,502.32 : 1,898,684,211.96 = 380,504,743.92 : x
  2. Step 2: Convert to fraction form
    1,265,838,502.32/1,898,684,211.96 = 380,504,743.92/x
  3. Step 3: Cross multiply
    1,265,838,502.32x = 1,898,684,211.96 × 380,504,743.92
  4. Step 4: Simplify right side
    1,265,838,502.32x = 722,458,349,856,786,816
  5. Step 5: Solve for x
    x = 722,458,349,856,786,816/1,265,838,502.32
  6. Step 6: Final answer
    x = 570,735,009.67

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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.