Home / 18,820,509.33-28,232,113.35-7,879,689.18

Finding the Fourth Proportional to 18,820,509.33, 28,232,113.35 and 7,879,689.18

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Solution

The fourth proportional to 18,820,509.33, 28,232,113.35 and 7,879,689.18 is: 11,820,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820,509.33 : 28,232,113.35 = 7,879,689.18 : x
  2. Step 2: Convert to fraction form
    18,820,509.33/28,232,113.35 = 7,879,689.18/x
  3. Step 3: Cross multiply
    18,820,509.33x = 28,232,113.35 × 7,879,689.18
  4. Step 4: Simplify right side
    18,820,509.33x = 222,460,277,911,969.53
  5. Step 5: Solve for x
    x = 222,460,277,911,969.53/18,820,509.33
  6. Step 6: Final answer
    x = 11,820,098.70

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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.