Home / 786,640,008.58-1,085,563,047.23-434,215,906.34

Finding the Fourth Proportional to 786,640,008.58, 1,085,563,047.23 and 434,215,906.34

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Solution

The fourth proportional to 786,640,008.58, 1,085,563,047.23 and 434,215,906.34 is: 599,217,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,640,008.58 : 1,085,563,047.23 = 434,215,906.34 : x
  2. Step 2: Convert to fraction form
    786,640,008.58/1,085,563,047.23 = 434,215,906.34/x
  3. Step 3: Cross multiply
    786,640,008.58x = 1,085,563,047.23 × 434,215,906.34
  4. Step 4: Simplify right side
    786,640,008.58x = 471,368,742,436,194,304
  5. Step 5: Solve for x
    x = 471,368,742,436,194,304/786,640,008.58
  6. Step 6: Final answer
    x = 599,217,859.88

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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.