Home / 528,745,765.82-729,637,170.21-293,788,392.38

Finding the Fourth Proportional to 528,745,765.82, 729,637,170.21 and 293,788,392.38

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Solution

The fourth proportional to 528,745,765.82, 729,637,170.21 and 293,788,392.38 is: 405,410,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,745,765.82 : 729,637,170.21 = 293,788,392.38 : x
  2. Step 2: Convert to fraction form
    528,745,765.82/729,637,170.21 = 293,788,392.38/x
  3. Step 3: Cross multiply
    528,745,765.82x = 729,637,170.21 × 293,788,392.38
  4. Step 4: Simplify right side
    528,745,765.82x = 214,358,931,256,688,320
  5. Step 5: Solve for x
    x = 214,358,931,256,688,320/528,745,765.82
  6. Step 6: Final answer
    x = 405,410,208.67

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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.