Home / 72,073,333.48-108,128,428.48-20,955,352.32

Finding the Fourth Proportional to 72,073,333.48, 108,128,428.48 and 20,955,352.32

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Solution

The fourth proportional to 72,073,333.48, 108,128,428.48 and 20,955,352.32 is: 31,438,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073,333.48 : 108,128,428.48 = 20,955,352.32 : x
  2. Step 2: Convert to fraction form
    72,073,333.48/108,128,428.48 = 20,955,352.32/x
  3. Step 3: Cross multiply
    72,073,333.48x = 108,128,428.48 × 20,955,352.32
  4. Step 4: Simplify right side
    72,073,333.48x = 2,265,869,314,606,322
  5. Step 5: Solve for x
    x = 2,265,869,314,606,322/72,073,333.48
  6. Step 6: Final answer
    x = 31,438,386.50

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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.