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Finding the Fourth Proportional to 489,212,649.80, 733,818,974.70 and 451,799,203.40

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Solution

The fourth proportional to 489,212,649.80, 733,818,974.70 and 451,799,203.40 is: 677,698,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,212,649.80 : 733,818,974.70 = 451,799,203.40 : x
  2. Step 2: Convert to fraction form
    489,212,649.80/733,818,974.70 = 451,799,203.40/x
  3. Step 3: Cross multiply
    489,212,649.80x = 733,818,974.70 × 451,799,203.40
  4. Step 4: Simplify right side
    489,212,649.80x = 331,538,828,209,264,768
  5. Step 5: Solve for x
    x = 331,538,828,209,264,768/489,212,649.80
  6. Step 6: Final answer
    x = 677,698,805.10

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1.5x scale

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.