Home / 528,745,765.32-729,637,169.52-293,788,391.88

Finding the Fourth Proportional to 528,745,765.32, 729,637,169.52 and 293,788,391.88

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Solution

The fourth proportional to 528,745,765.32, 729,637,169.52 and 293,788,391.88 is: 405,410,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,745,765.32 : 729,637,169.52 = 293,788,391.88 : x
  2. Step 2: Convert to fraction form
    528,745,765.32/729,637,169.52 = 293,788,391.88/x
  3. Step 3: Cross multiply
    528,745,765.32x = 729,637,169.52 × 293,788,391.88
  4. Step 4: Simplify right side
    528,745,765.32x = 214,358,930,689,155,744
  5. Step 5: Solve for x
    x = 214,358,930,689,155,744/528,745,765.32
  6. Step 6: Final answer
    x = 405,410,207.98

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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.