Home / 489,937,147.20-734,905,720.80-436,367,894.40

Finding the Fourth Proportional to 489,937,147.20, 734,905,720.80 and 436,367,894.40

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Solution

The fourth proportional to 489,937,147.20, 734,905,720.80 and 436,367,894.40 is: 654,551,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,937,147.20 : 734,905,720.80 = 436,367,894.40 : x
  2. Step 2: Convert to fraction form
    489,937,147.20/734,905,720.80 = 436,367,894.40/x
  3. Step 3: Cross multiply
    489,937,147.20x = 734,905,720.80 × 436,367,894.40
  4. Step 4: Simplify right side
    489,937,147.20x = 320,689,261,968,010,240
  5. Step 5: Solve for x
    x = 320,689,261,968,010,240/489,937,147.20
  6. Step 6: Final answer
    x = 654,551,841.60

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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.