Home / 489,509,317.20-732,563,364.60-448,694,648.40

Finding the Fourth Proportional to 489,509,317.20, 732,563,364.60 and 448,694,648.40

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Solution

The fourth proportional to 489,509,317.20, 732,563,364.60 and 448,694,648.40 is: 671,483,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,509,317.20 : 732,563,364.60 = 448,694,648.40 : x
  2. Step 2: Convert to fraction form
    489,509,317.20/732,563,364.60 = 448,694,648.40/x
  3. Step 3: Cross multiply
    489,509,317.20x = 732,563,364.60 × 448,694,648.40
  4. Step 4: Simplify right side
    489,509,317.20x = 328,697,261,309,918,016
  5. Step 5: Solve for x
    x = 328,697,261,309,918,016/489,509,317.20
  6. Step 6: Final answer
    x = 671,483,156.21

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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.