Home / 18,833,143.80-28,249,715.70-9,267,205.80

Finding the Fourth Proportional to 18,833,143.80, 28,249,715.70 and 9,267,205.80

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Solution

The fourth proportional to 18,833,143.80, 28,249,715.70 and 9,267,205.80 is: 13,900,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833,143.80 : 28,249,715.70 = 9,267,205.80 : x
  2. Step 2: Convert to fraction form
    18,833,143.80/28,249,715.70 = 9,267,205.80/x
  3. Step 3: Cross multiply
    18,833,143.80x = 28,249,715.70 × 9,267,205.80
  4. Step 4: Simplify right side
    18,833,143.80x = 261,795,929,183,391.06
  5. Step 5: Solve for x
    x = 261,795,929,183,391.06/18,833,143.80
  6. Step 6: Final answer
    x = 13,900,808.70

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Similar ratio
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1.5x scale

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.