Home / 281,493,140.44-388,460,527.64-156,045,018.47

Finding the Fourth Proportional to 281,493,140.44, 388,460,527.64 and 156,045,018.47

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Solution

The fourth proportional to 281,493,140.44, 388,460,527.64 and 156,045,018.47 is: 215,342,122.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,493,140.44 : 388,460,527.64 = 156,045,018.47 : x
  2. Step 2: Convert to fraction form
    281,493,140.44/388,460,527.64 = 156,045,018.47/x
  3. Step 3: Cross multiply
    281,493,140.44x = 388,460,527.64 × 156,045,018.47
  4. Step 4: Simplify right side
    281,493,140.44x = 60,617,330,210,640,672
  5. Step 5: Solve for x
    x = 60,617,330,210,640,672/281,493,140.44
  6. Step 6: Final answer
    x = 215,342,122.07

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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.