Home / 489,452,015.40-734,178,023.10-448,637,346.60

Finding the Fourth Proportional to 489,452,015.40, 734,178,023.10 and 448,637,346.60

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Solution

The fourth proportional to 489,452,015.40, 734,178,023.10 and 448,637,346.60 is: 672,956,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,452,015.40 : 734,178,023.10 = 448,637,346.60 : x
  2. Step 2: Convert to fraction form
    489,452,015.40/734,178,023.10 = 448,637,346.60/x
  3. Step 3: Cross multiply
    489,452,015.40x = 734,178,023.10 × 448,637,346.60
  4. Step 4: Simplify right side
    489,452,015.40x = 329,379,680,215,617,536
  5. Step 5: Solve for x
    x = 329,379,680,215,617,536/489,452,015.40
  6. Step 6: Final answer
    x = 672,956,019.90

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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.