Home / 75,608,923.20-113,413,384.80-72,291,681.60

Finding the Fourth Proportional to 75,608,923.20, 113,413,384.80 and 72,291,681.60

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Solution

The fourth proportional to 75,608,923.20, 113,413,384.80 and 72,291,681.60 is: 108,437,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,608,923.20 : 113,413,384.80 = 72,291,681.60 : x
  2. Step 2: Convert to fraction form
    75,608,923.20/113,413,384.80 = 72,291,681.60/x
  3. Step 3: Cross multiply
    75,608,923.20x = 113,413,384.80 × 72,291,681.60
  4. Step 4: Simplify right side
    75,608,923.20x = 8,198,844,303,139,879
  5. Step 5: Solve for x
    x = 8,198,844,303,139,879/75,608,923.20
  6. Step 6: Final answer
    x = 108,437,522.40

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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.