Home / 383,478,752.40-575,218,128.60-266,136,579.60

Finding the Fourth Proportional to 383,478,752.40, 575,218,128.60 and 266,136,579.60

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Solution

The fourth proportional to 383,478,752.40, 575,218,128.60 and 266,136,579.60 is: 399,204,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,478,752.40 : 575,218,128.60 = 266,136,579.60 : x
  2. Step 2: Convert to fraction form
    383,478,752.40/575,218,128.60 = 266,136,579.60/x
  3. Step 3: Cross multiply
    383,478,752.40x = 575,218,128.60 × 266,136,579.60
  4. Step 4: Simplify right side
    383,478,752.40x = 153,086,585,269,516,928
  5. Step 5: Solve for x
    x = 153,086,585,269,516,928/383,478,752.40
  6. Step 6: Final answer
    x = 399,204,869.40

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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.