Home / 678,241,971.60-1,017,628,378.20-247,464,013.20

Finding the Fourth Proportional to 678,241,971.60, 1,017,628,378.20 and 247,464,013.20

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Solution

The fourth proportional to 678,241,971.60, 1,017,628,378.20 and 247,464,013.20 is: 371,292,861.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,241,971.60 : 1,017,628,378.20 = 247,464,013.20 : x
  2. Step 2: Convert to fraction form
    678,241,971.60/1,017,628,378.20 = 247,464,013.20/x
  3. Step 3: Cross multiply
    678,241,971.60x = 1,017,628,378.20 × 247,464,013.20
  4. Step 4: Simplify right side
    678,241,971.60x = 251,826,402,415,579,392
  5. Step 5: Solve for x
    x = 251,826,402,415,579,392/678,241,971.60
  6. Step 6: Final answer
    x = 371,292,861.49

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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.