Home / 77,264,081.58-106,517,890.58-61,636,148.68

Finding the Fourth Proportional to 77,264,081.58, 106,517,890.58 and 61,636,148.68

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Solution

The fourth proportional to 77,264,081.58, 106,517,890.58 and 61,636,148.68 is: 84,972,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,264,081.58 : 106,517,890.58 = 61,636,148.68 : x
  2. Step 2: Convert to fraction form
    77,264,081.58/106,517,890.58 = 61,636,148.68/x
  3. Step 3: Cross multiply
    77,264,081.58x = 106,517,890.58 × 61,636,148.68
  4. Step 4: Simplify right side
    77,264,081.58x = 6,565,352,540,868,851
  5. Step 5: Solve for x
    x = 6,565,352,540,868,851/77,264,081.58
  6. Step 6: Final answer
    x = 84,972,893.05

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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.