Home / 433,090,821.60-649,636,232.40-417,785,320.80

Finding the Fourth Proportional to 433,090,821.60, 649,636,232.40 and 417,785,320.80

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Solution

The fourth proportional to 433,090,821.60, 649,636,232.40 and 417,785,320.80 is: 626,677,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,090,821.60 : 649,636,232.40 = 417,785,320.80 : x
  2. Step 2: Convert to fraction form
    433,090,821.60/649,636,232.40 = 417,785,320.80/x
  3. Step 3: Cross multiply
    433,090,821.60x = 649,636,232.40 × 417,785,320.80
  4. Step 4: Simplify right side
    433,090,821.60x = 271,408,481,756,537,344
  5. Step 5: Solve for x
    x = 271,408,481,756,537,344/433,090,821.60
  6. Step 6: Final answer
    x = 626,677,981.20

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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.