Home / 1,081,256,013.72-1,621,886,678.40-304,905,743.28

Finding the Fourth Proportional to 1,081,256,013.72, 1,621,886,678.40 and 304,905,743.28

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Solution

The fourth proportional to 1,081,256,013.72, 1,621,886,678.40 and 304,905,743.28 is: 457,359,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,256,013.72 : 1,621,886,678.40 = 304,905,743.28 : x
  2. Step 2: Convert to fraction form
    1,081,256,013.72/1,621,886,678.40 = 304,905,743.28/x
  3. Step 3: Cross multiply
    1,081,256,013.72x = 1,621,886,678.40 × 304,905,743.28
  4. Step 4: Simplify right side
    1,081,256,013.72x = 494,522,563,193,482,304
  5. Step 5: Solve for x
    x = 494,522,563,193,482,304/1,081,256,013.72
  6. Step 6: Final answer
    x = 457,359,364.40

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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.