Home / 213,046,409.18-319,287,101.21-109,411,428.37

Finding the Fourth Proportional to 213,046,409.18, 319,287,101.21 and 109,411,428.37

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Solution

The fourth proportional to 213,046,409.18, 319,287,101.21 and 109,411,428.37 is: 163,972,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,046,409.18 : 319,287,101.21 = 109,411,428.37 : x
  2. Step 2: Convert to fraction form
    213,046,409.18/319,287,101.21 = 109,411,428.37/x
  3. Step 3: Cross multiply
    213,046,409.18x = 319,287,101.21 × 109,411,428.37
  4. Step 4: Simplify right side
    213,046,409.18x = 34,933,657,802,955,796
  5. Step 5: Solve for x
    x = 34,933,657,802,955,796/213,046,409.18
  6. Step 6: Final answer
    x = 163,972,056.32

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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.