Home / 77,307,071.40-115,974,603.90-38,871,858.60

Finding the Fourth Proportional to 77,307,071.40, 115,974,603.90 and 38,871,858.60

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Solution

The fourth proportional to 77,307,071.40, 115,974,603.90 and 38,871,858.60 is: 58,314,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,307,071.40 : 115,974,603.90 = 38,871,858.60 : x
  2. Step 2: Convert to fraction form
    77,307,071.40/115,974,603.90 = 38,871,858.60/x
  3. Step 3: Cross multiply
    77,307,071.40x = 115,974,603.90 × 38,871,858.60
  4. Step 4: Simplify right side
    77,307,071.40x = 4,508,148,403,991,809
  5. Step 5: Solve for x
    x = 4,508,148,403,991,809/77,307,071.40
  6. Step 6: Final answer
    x = 58,314,825.83

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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.