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Finding the Fourth Proportional to 599,779,996.80, 899,669,995.20 and 478,847,644.80

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Solution

The fourth proportional to 599,779,996.80, 899,669,995.20 and 478,847,644.80 is: 718,271,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,779,996.80 : 899,669,995.20 = 478,847,644.80 : x
  2. Step 2: Convert to fraction form
    599,779,996.80/899,669,995.20 = 478,847,644.80/x
  3. Step 3: Cross multiply
    599,779,996.80x = 899,669,995.20 × 478,847,644.80
  4. Step 4: Simplify right side
    599,779,996.80x = 430,804,858,298,747,328
  5. Step 5: Solve for x
    x = 430,804,858,298,747,328/599,779,996.80
  6. Step 6: Final answer
    x = 718,271,467.20

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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.