Home / 78,725,933.49-118,080,927.25-21,224,017.29

Finding the Fourth Proportional to 78,725,933.49, 118,080,927.25 and 21,224,017.29

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Solution

The fourth proportional to 78,725,933.49, 118,080,927.25 and 21,224,017.29 is: 31,833,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,933.49 : 118,080,927.25 = 21,224,017.29 : x
  2. Step 2: Convert to fraction form
    78,725,933.49/118,080,927.25 = 21,224,017.29/x
  3. Step 3: Cross multiply
    78,725,933.49x = 118,080,927.25 × 21,224,017.29
  4. Step 4: Simplify right side
    78,725,933.49x = 2,506,151,641,520,172
  5. Step 5: Solve for x
    x = 2,506,151,641,520,172/78,725,933.49
  6. Step 6: Final answer
    x = 31,833,876.47

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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.