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Finding the Fourth Proportional to 680,366,585.61, 1,019,720,772 and 352,661,431.77

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Solution

The fourth proportional to 680,366,585.61, 1,019,720,772 and 352,661,431.77 is: 528,562,388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,366,585.61 : 1,019,720,772 = 352,661,431.77 : x
  2. Step 2: Convert to fraction form
    680,366,585.61/1,019,720,772 = 352,661,431.77/x
  3. Step 3: Cross multiply
    680,366,585.61x = 1,019,720,772 × 352,661,431.77
  4. Step 4: Simplify right side
    680,366,585.61x = 359,616,187,459,129,728
  5. Step 5: Solve for x
    x = 359,616,187,459,129,728/680,366,585.61
  6. Step 6: Final answer
    x = 528,562,388.37

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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.