Home / 489,509,743.20-732,564,003.60-448,695,074.40

Finding the Fourth Proportional to 489,509,743.20, 732,564,003.60 and 448,695,074.40

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Solution

The fourth proportional to 489,509,743.20, 732,564,003.60 and 448,695,074.40 is: 671,483,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,509,743.20 : 732,564,003.60 = 448,695,074.40 : x
  2. Step 2: Convert to fraction form
    489,509,743.20/732,564,003.60 = 448,695,074.40/x
  3. Step 3: Cross multiply
    489,509,743.20x = 732,564,003.60 × 448,695,074.40
  4. Step 4: Simplify right side
    489,509,743.20x = 328,697,860,098,063,872
  5. Step 5: Solve for x
    x = 328,697,860,098,063,872/489,509,743.20
  6. Step 6: Final answer
    x = 671,483,795.09

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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.