Home / 528,819,835.30-729,789,073.30-293,880,398.02

Finding the Fourth Proportional to 528,819,835.30, 729,789,073.30 and 293,880,398.02

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Solution

The fourth proportional to 528,819,835.30, 729,789,073.30 and 293,880,398.02 is: 405,564,785.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,819,835.30 : 729,789,073.30 = 293,880,398.02 : x
  2. Step 2: Convert to fraction form
    528,819,835.30/729,789,073.30 = 293,880,398.02/x
  3. Step 3: Cross multiply
    528,819,835.30x = 729,789,073.30 × 293,880,398.02
  4. Step 4: Simplify right side
    528,819,835.30x = 214,470,703,332,050,912
  5. Step 5: Solve for x
    x = 214,470,703,332,050,912/528,819,835.30
  6. Step 6: Final answer
    x = 405,564,785.99

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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.