Home / 76,268,947.36-105,285,075.60-45,339,129.76

Finding the Fourth Proportional to 76,268,947.36, 105,285,075.60 and 45,339,129.76

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Solution

The fourth proportional to 76,268,947.36, 105,285,075.60 and 45,339,129.76 is: 62,588,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,268,947.36 : 105,285,075.60 = 45,339,129.76 : x
  2. Step 2: Convert to fraction form
    76,268,947.36/105,285,075.60 = 45,339,129.76/x
  3. Step 3: Cross multiply
    76,268,947.36x = 105,285,075.60 × 45,339,129.76
  4. Step 4: Simplify right side
    76,268,947.36x = 4,773,533,704,419,809
  5. Step 5: Solve for x
    x = 4,773,533,704,419,809/76,268,947.36
  6. Step 6: Final answer
    x = 62,588,168.18

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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.