Home / 318,431,564.55-439,453,646.73-191,311,123.32

Finding the Fourth Proportional to 318,431,564.55, 439,453,646.73 and 191,311,123.32

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Solution

The fourth proportional to 318,431,564.55, 439,453,646.73 and 191,311,123.32 is: 264,020,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,431,564.55 : 439,453,646.73 = 191,311,123.32 : x
  2. Step 2: Convert to fraction form
    318,431,564.55/439,453,646.73 = 191,311,123.32/x
  3. Step 3: Cross multiply
    318,431,564.55x = 439,453,646.73 × 191,311,123.32
  4. Step 4: Simplify right side
    318,431,564.55x = 84,072,370,802,986,752
  5. Step 5: Solve for x
    x = 84,072,370,802,986,752/318,431,564.55
  6. Step 6: Final answer
    x = 264,020,217.10

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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.