Home / 433,102,901.40-649,654,352.10-385,485,787.80

Finding the Fourth Proportional to 433,102,901.40, 649,654,352.10 and 385,485,787.80

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Solution

The fourth proportional to 433,102,901.40, 649,654,352.10 and 385,485,787.80 is: 578,228,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,102,901.40 : 649,654,352.10 = 385,485,787.80 : x
  2. Step 2: Convert to fraction form
    433,102,901.40/649,654,352.10 = 385,485,787.80/x
  3. Step 3: Cross multiply
    433,102,901.40x = 649,654,352.10 × 385,485,787.80
  4. Step 4: Simplify right side
    433,102,901.40x = 250,432,519,716,967,104
  5. Step 5: Solve for x
    x = 250,432,519,716,967,104/433,102,901.40
  6. Step 6: Final answer
    x = 578,228,681.70

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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.