Home / 28,364,303.62-39,143,783.07-15,806,486.75

Finding the Fourth Proportional to 28,364,303.62, 39,143,783.07 and 15,806,486.75

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Solution

The fourth proportional to 28,364,303.62, 39,143,783.07 and 15,806,486.75 is: 21,813,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364,303.62 : 39,143,783.07 = 15,806,486.75 : x
  2. Step 2: Convert to fraction form
    28,364,303.62/39,143,783.07 = 15,806,486.75/x
  3. Step 3: Cross multiply
    28,364,303.62x = 39,143,783.07 × 15,806,486.75
  4. Step 4: Simplify right side
    28,364,303.62x = 618,725,688,440,829.38
  5. Step 5: Solve for x
    x = 618,725,688,440,829.38/28,364,303.62
  6. Step 6: Final answer
    x = 21,813,533.54

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1.5x scale

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.