Home / 489,110,790.40-734,516,491.20-259,528,278.40

Finding the Fourth Proportional to 489,110,790.40, 734,516,491.20 and 259,528,278.40

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Solution

The fourth proportional to 489,110,790.40, 734,516,491.20 and 259,528,278.40 is: 389,743,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,110,790.40 : 734,516,491.20 = 259,528,278.40 : x
  2. Step 2: Convert to fraction form
    489,110,790.40/734,516,491.20 = 259,528,278.40/x
  3. Step 3: Cross multiply
    489,110,790.40x = 734,516,491.20 × 259,528,278.40
  4. Step 4: Simplify right side
    489,110,790.40x = 190,627,800,417,544,768
  5. Step 5: Solve for x
    x = 190,627,800,417,544,768/489,110,790.40
  6. Step 6: Final answer
    x = 389,743,600.34

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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.