Home / 425,939,606.12-639,091,804.96-134,830,427.24

Finding the Fourth Proportional to 425,939,606.12, 639,091,804.96 and 134,830,427.24

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Solution

The fourth proportional to 425,939,606.12, 639,091,804.96 and 134,830,427.24 is: 202,303,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,939,606.12 : 639,091,804.96 = 134,830,427.24 : x
  2. Step 2: Convert to fraction form
    425,939,606.12/639,091,804.96 = 134,830,427.24/x
  3. Step 3: Cross multiply
    425,939,606.12x = 639,091,804.96 × 134,830,427.24
  4. Step 4: Simplify right side
    425,939,606.12x = 86,169,021,108,339,568
  5. Step 5: Solve for x
    x = 86,169,021,108,339,568/425,939,606.12
  6. Step 6: Final answer
    x = 202,303,377.92

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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.