Home / 668,828,010.80-1,003,242,016.20-436,375,717.40

Finding the Fourth Proportional to 668,828,010.80, 1,003,242,016.20 and 436,375,717.40

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Solution

The fourth proportional to 668,828,010.80, 1,003,242,016.20 and 436,375,717.40 is: 654,563,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,828,010.80 : 1,003,242,016.20 = 436,375,717.40 : x
  2. Step 2: Convert to fraction form
    668,828,010.80/1,003,242,016.20 = 436,375,717.40/x
  3. Step 3: Cross multiply
    668,828,010.80x = 1,003,242,016.20 × 436,375,717.40
  4. Step 4: Simplify right side
    668,828,010.80x = 437,790,454,545,097,408
  5. Step 5: Solve for x
    x = 437,790,454,545,097,408/668,828,010.80
  6. Step 6: Final answer
    x = 654,563,576.10

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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.