Home / 431,022,666.60-646,533,999.90-397,766,269.80

Finding the Fourth Proportional to 431,022,666.60, 646,533,999.90 and 397,766,269.80

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Solution

The fourth proportional to 431,022,666.60, 646,533,999.90 and 397,766,269.80 is: 596,649,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,022,666.60 : 646,533,999.90 = 397,766,269.80 : x
  2. Step 2: Convert to fraction form
    431,022,666.60/646,533,999.90 = 397,766,269.80/x
  3. Step 3: Cross multiply
    431,022,666.60x = 646,533,999.90 × 397,766,269.80
  4. Step 4: Simplify right side
    431,022,666.60x = 257,169,417,439,096,576
  5. Step 5: Solve for x
    x = 257,169,417,439,096,576/431,022,666.60
  6. Step 6: Final answer
    x = 596,649,404.70

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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.