Home / 804,871,999.60-1,207,307,999.40-643,628,863.60

Finding the Fourth Proportional to 804,871,999.60, 1,207,307,999.40 and 643,628,863.60

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Solution

The fourth proportional to 804,871,999.60, 1,207,307,999.40 and 643,628,863.60 is: 965,443,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,871,999.60 : 1,207,307,999.40 = 643,628,863.60 : x
  2. Step 2: Convert to fraction form
    804,871,999.60/1,207,307,999.40 = 643,628,863.60/x
  3. Step 3: Cross multiply
    804,871,999.60x = 1,207,307,999.40 × 643,628,863.60
  4. Step 4: Simplify right side
    804,871,999.60x = 777,058,275,669,011,584
  5. Step 5: Solve for x
    x = 777,058,275,669,011,584/804,871,999.60
  6. Step 6: Final answer
    x = 965,443,295.40

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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.