Home / 82,843,805.34-124,265,701.80-78,701,333.58

Finding the Fourth Proportional to 82,843,805.34, 124,265,701.80 and 78,701,333.58

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Solution

The fourth proportional to 82,843,805.34, 124,265,701.80 and 78,701,333.58 is: 118,051,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,843,805.34 : 124,265,701.80 = 78,701,333.58 : x
  2. Step 2: Convert to fraction form
    82,843,805.34/124,265,701.80 = 78,701,333.58/x
  3. Step 3: Cross multiply
    82,843,805.34x = 124,265,701.80 × 78,701,333.58
  4. Step 4: Simplify right side
    82,843,805.34x = 9,779,876,449,914,606
  5. Step 5: Solve for x
    x = 9,779,876,449,914,606/82,843,805.34
  6. Step 6: Final answer
    x = 118,051,994.47

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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.