Home / 130,290,017.16-179,870,027.94-100,455,502.60

Finding the Fourth Proportional to 130,290,017.16, 179,870,027.94 and 100,455,502.60

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Solution

The fourth proportional to 130,290,017.16, 179,870,027.94 and 100,455,502.60 is: 138,682,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,290,017.16 : 179,870,027.94 = 100,455,502.60 : x
  2. Step 2: Convert to fraction form
    130,290,017.16/179,870,027.94 = 100,455,502.60/x
  3. Step 3: Cross multiply
    130,290,017.16x = 179,870,027.94 × 100,455,502.60
  4. Step 4: Simplify right side
    130,290,017.16x = 18,068,934,059,388,740
  5. Step 5: Solve for x
    x = 18,068,934,059,388,740/130,290,017.16
  6. Step 6: Final answer
    x = 138,682,413.69

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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.