Home / 643,258,276.44-962,452,501.79-381,083,540.40

Finding the Fourth Proportional to 643,258,276.44, 962,452,501.79 and 381,083,540.40

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Solution

The fourth proportional to 643,258,276.44, 962,452,501.79 and 381,083,540.40 is: 570,182,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,258,276.44 : 962,452,501.79 = 381,083,540.40 : x
  2. Step 2: Convert to fraction form
    643,258,276.44/962,452,501.79 = 381,083,540.40/x
  3. Step 3: Cross multiply
    643,258,276.44x = 962,452,501.79 × 381,083,540.40
  4. Step 4: Simplify right side
    643,258,276.44x = 366,774,806,847,065,088
  5. Step 5: Solve for x
    x = 366,774,806,847,065,088/643,258,276.44
  6. Step 6: Final answer
    x = 570,182,802.59

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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.