Home / 442,672,946.80-664,009,420.20-436,626,329.20

Finding the Fourth Proportional to 442,672,946.80, 664,009,420.20 and 436,626,329.20

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Solution

The fourth proportional to 442,672,946.80, 664,009,420.20 and 436,626,329.20 is: 654,939,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,672,946.80 : 664,009,420.20 = 436,626,329.20 : x
  2. Step 2: Convert to fraction form
    442,672,946.80/664,009,420.20 = 436,626,329.20/x
  3. Step 3: Cross multiply
    442,672,946.80x = 664,009,420.20 × 436,626,329.20
  4. Step 4: Simplify right side
    442,672,946.80x = 289,923,995,696,146,368
  5. Step 5: Solve for x
    x = 289,923,995,696,146,368/442,672,946.80
  6. Step 6: Final answer
    x = 654,939,493.80

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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.