Home / 489,909,738.60-734,864,607.90-404,879,178.60

Finding the Fourth Proportional to 489,909,738.60, 734,864,607.90 and 404,879,178.60

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Solution

The fourth proportional to 489,909,738.60, 734,864,607.90 and 404,879,178.60 is: 607,318,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,738.60 : 734,864,607.90 = 404,879,178.60 : x
  2. Step 2: Convert to fraction form
    489,909,738.60/734,864,607.90 = 404,879,178.60/x
  3. Step 3: Cross multiply
    489,909,738.60x = 734,864,607.90 × 404,879,178.60
  4. Step 4: Simplify right side
    489,909,738.60x = 297,531,378,828,763,072
  5. Step 5: Solve for x
    x = 297,531,378,828,763,072/489,909,738.60
  6. Step 6: Final answer
    x = 607,318,767.90

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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.