Home / 781,281,626.54-1,078,169,825.77-424,049,531.47

Finding the Fourth Proportional to 781,281,626.54, 1,078,169,825.77 and 424,049,531.47

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Solution

The fourth proportional to 781,281,626.54, 1,078,169,825.77 and 424,049,531.47 is: 585,188,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,281,626.54 : 1,078,169,825.77 = 424,049,531.47 : x
  2. Step 2: Convert to fraction form
    781,281,626.54/1,078,169,825.77 = 424,049,531.47/x
  3. Step 3: Cross multiply
    781,281,626.54x = 1,078,169,825.77 × 424,049,531.47
  4. Step 4: Simplify right side
    781,281,626.54x = 457,197,409,459,104,448
  5. Step 5: Solve for x
    x = 457,197,409,459,104,448/781,281,626.54
  6. Step 6: Final answer
    x = 585,188,994.51

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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.