Home / 1,992,741,587.43-2,989,397,656.67-612,671,985.51

Finding the Fourth Proportional to 1,992,741,587.43, 2,989,397,656.67 and 612,671,985.51

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Solution

The fourth proportional to 1,992,741,587.43, 2,989,397,656.67 and 612,671,985.51 is: 919,095,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,741,587.43 : 2,989,397,656.67 = 612,671,985.51 : x
  2. Step 2: Convert to fraction form
    1,992,741,587.43/2,989,397,656.67 = 612,671,985.51/x
  3. Step 3: Cross multiply
    1,992,741,587.43x = 2,989,397,656.67 × 612,671,985.51
  4. Step 4: Simplify right side
    1,992,741,587.43x = 1,831,520,197,787,886,848
  5. Step 5: Solve for x
    x = 1,831,520,197,787,886,848/1,992,741,587.43
  6. Step 6: Final answer
    x = 919,095,686.74

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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.