Home / 77,213,365.95-115,819,956-19,705,643.27

Finding the Fourth Proportional to 77,213,365.95, 115,819,956 and 19,705,643.27

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Solution

The fourth proportional to 77,213,365.95, 115,819,956 and 19,705,643.27 is: 29,558,441.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,365.95 : 115,819,956 = 19,705,643.27 : x
  2. Step 2: Convert to fraction form
    77,213,365.95/115,819,956 = 19,705,643.27/x
  3. Step 3: Cross multiply
    77,213,365.95x = 115,819,956 × 19,705,643.27
  4. Step 4: Simplify right side
    77,213,365.95x = 2,282,306,736,338,321.50
  5. Step 5: Solve for x
    x = 2,282,306,736,338,321.50/77,213,365.95
  6. Step 6: Final answer
    x = 29,558,441.19

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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.