Home / 528,408,074.40-792,612,111.60-164,855,191.20

Finding the Fourth Proportional to 528,408,074.40, 792,612,111.60 and 164,855,191.20

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Solution

The fourth proportional to 528,408,074.40, 792,612,111.60 and 164,855,191.20 is: 247,282,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,408,074.40 : 792,612,111.60 = 164,855,191.20 : x
  2. Step 2: Convert to fraction form
    528,408,074.40/792,612,111.60 = 164,855,191.20/x
  3. Step 3: Cross multiply
    528,408,074.40x = 792,612,111.60 × 164,855,191.20
  4. Step 4: Simplify right side
    528,408,074.40x = 130,666,221,205,253,728
  5. Step 5: Solve for x
    x = 130,666,221,205,253,728/528,408,074.40
  6. Step 6: Final answer
    x = 247,282,786.80

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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.