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Finding the Fourth Proportional to 446,671,124.80, 670,006,687.20 and 343,358,994.40

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Solution

The fourth proportional to 446,671,124.80, 670,006,687.20 and 343,358,994.40 is: 515,038,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,671,124.80 : 670,006,687.20 = 343,358,994.40 : x
  2. Step 2: Convert to fraction form
    446,671,124.80/670,006,687.20 = 343,358,994.40/x
  3. Step 3: Cross multiply
    446,671,124.80x = 670,006,687.20 × 343,358,994.40
  4. Step 4: Simplify right side
    446,671,124.80x = 230,052,822,358,267,360
  5. Step 5: Solve for x
    x = 230,052,822,358,267,360/446,671,124.80
  6. Step 6: Final answer
    x = 515,038,491.60

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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.