Home / 20,674,530.48-28,530,366.84-11,506,976.40

Finding the Fourth Proportional to 20,674,530.48, 28,530,366.84 and 11,506,976.40

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Solution

The fourth proportional to 20,674,530.48, 28,530,366.84 and 11,506,976.40 is: 15,879,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,530.48 : 28,530,366.84 = 11,506,976.40 : x
  2. Step 2: Convert to fraction form
    20,674,530.48/28,530,366.84 = 11,506,976.40/x
  3. Step 3: Cross multiply
    20,674,530.48x = 28,530,366.84 × 11,506,976.40
  4. Step 4: Simplify right side
    20,674,530.48x = 328,298,257,911,222.56
  5. Step 5: Solve for x
    x = 328,298,257,911,222.56/20,674,530.48
  6. Step 6: Final answer
    x = 15,879,357.37

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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.