Home / 153,196,135.65-211,410,379.31-83,581,563.69

Finding the Fourth Proportional to 153,196,135.65, 211,410,379.31 and 83,581,563.69

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Solution

The fourth proportional to 153,196,135.65, 211,410,379.31 and 83,581,563.69 is: 115,342,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,196,135.65 : 211,410,379.31 = 83,581,563.69 : x
  2. Step 2: Convert to fraction form
    153,196,135.65/211,410,379.31 = 83,581,563.69/x
  3. Step 3: Cross multiply
    153,196,135.65x = 211,410,379.31 × 83,581,563.69
  4. Step 4: Simplify right side
    153,196,135.65x = 17,670,010,082,607,916
  5. Step 5: Solve for x
    x = 17,670,010,082,607,916/153,196,135.65
  6. Step 6: Final answer
    x = 115,342,400.82

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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.