Home / 500,164,876.53-690,237,516.30-291,334,471.26

Finding the Fourth Proportional to 500,164,876.53, 690,237,516.30 and 291,334,471.26

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Solution

The fourth proportional to 500,164,876.53, 690,237,516.30 and 291,334,471.26 is: 402,047,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,164,876.53 : 690,237,516.30 = 291,334,471.26 : x
  2. Step 2: Convert to fraction form
    500,164,876.53/690,237,516.30 = 291,334,471.26/x
  3. Step 3: Cross multiply
    500,164,876.53x = 690,237,516.30 × 291,334,471.26
  4. Step 4: Simplify right side
    500,164,876.53x = 201,089,981,855,076,096
  5. Step 5: Solve for x
    x = 201,089,981,855,076,096/500,164,876.53
  6. Step 6: Final answer
    x = 402,047,387.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.