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Finding the Fourth Proportional to 446,672,809.80, 670,009,214.70 and 343,360,679.40

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Solution

The fourth proportional to 446,672,809.80, 670,009,214.70 and 343,360,679.40 is: 515,041,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,672,809.80 : 670,009,214.70 = 343,360,679.40 : x
  2. Step 2: Convert to fraction form
    446,672,809.80/670,009,214.70 = 343,360,679.40/x
  3. Step 3: Cross multiply
    446,672,809.80x = 670,009,214.70 × 343,360,679.40
  4. Step 4: Simplify right side
    446,672,809.80x = 230,054,819,163,652,480
  5. Step 5: Solve for x
    x = 230,054,819,163,652,480/446,672,809.80
  6. Step 6: Final answer
    x = 515,041,019.10

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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.