Home / 78,579,518.72-117,868,448.64-30,710,048

Finding the Fourth Proportional to 78,579,518.72, 117,868,448.64 and 30,710,048

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Solution

The fourth proportional to 78,579,518.72, 117,868,448.64 and 30,710,048 is: 46,064,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,579,518.72 : 117,868,448.64 = 30,710,048 : x
  2. Step 2: Convert to fraction form
    78,579,518.72/117,868,448.64 = 30,710,048/x
  3. Step 3: Cross multiply
    78,579,518.72x = 117,868,448.64 × 30,710,048
  4. Step 4: Simplify right side
    78,579,518.72x = 3,619,745,715,419,934.50
  5. Step 5: Solve for x
    x = 3,619,745,715,419,934.50/78,579,518.72
  6. Step 6: Final answer
    x = 46,064,747.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.