Home / 153,833,786,866.24-212,291,872,342-85,246,345,653.68

Finding the Fourth Proportional to 153,833,786,866.24, 212,291,872,342 and 85,246,345,653.68

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Solution

The fourth proportional to 153,833,786,866.24, 212,291,872,342 and 85,246,345,653.68 is: 117,640,647,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,833,786,866.24 : 212,291,872,342 = 85,246,345,653.68 : x
  2. Step 2: Convert to fraction form
    153,833,786,866.24/212,291,872,342 = 85,246,345,653.68/x
  3. Step 3: Cross multiply
    153,833,786,866.24x = 212,291,872,342 × 85,246,345,653.68
  4. Step 4: Simplify right side
    153,833,786,866.24x = 18,097,106,329,133,039,747,072
  5. Step 5: Solve for x
    x = 18,097,106,329,133,039,747,072/153,833,786,866.24
  6. Step 6: Final answer
    x = 117,640,647,726.29

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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.