Home / 387,284,821.19-534,437,494.81-211,069,040.32

Finding the Fourth Proportional to 387,284,821.19, 534,437,494.81 and 211,069,040.32

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Solution

The fourth proportional to 387,284,821.19, 534,437,494.81 and 211,069,040.32 is: 291,266,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,284,821.19 : 534,437,494.81 = 211,069,040.32 : x
  2. Step 2: Convert to fraction form
    387,284,821.19/534,437,494.81 = 211,069,040.32/x
  3. Step 3: Cross multiply
    387,284,821.19x = 534,437,494.81 × 211,069,040.32
  4. Step 4: Simplify right side
    387,284,821.19x = 112,803,209,141,907,824
  5. Step 5: Solve for x
    x = 112,803,209,141,907,824/387,284,821.19
  6. Step 6: Final answer
    x = 291,266,796.35

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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.