Home / 1,243,328,658.60-1,864,489,103.10-425,019,743.40

Finding the Fourth Proportional to 1,243,328,658.60, 1,864,489,103.10 and 425,019,743.40

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Solution

The fourth proportional to 1,243,328,658.60, 1,864,489,103.10 and 425,019,743.40 is: 637,357,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,328,658.60 : 1,864,489,103.10 = 425,019,743.40 : x
  2. Step 2: Convert to fraction form
    1,243,328,658.60/1,864,489,103.10 = 425,019,743.40/x
  3. Step 3: Cross multiply
    1,243,328,658.60x = 1,864,489,103.10 × 425,019,743.40
  4. Step 4: Simplify right side
    1,243,328,658.60x = 792,444,680,171,658,112
  5. Step 5: Solve for x
    x = 792,444,680,171,658,112/1,243,328,658.60
  6. Step 6: Final answer
    x = 637,357,367.01

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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.