Home / 1,167,458,792.66-1,611,129,271.73-638,845,058.78

Finding the Fourth Proportional to 1,167,458,792.66, 1,611,129,271.73 and 638,845,058.78

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Solution

The fourth proportional to 1,167,458,792.66, 1,611,129,271.73 and 638,845,058.78 is: 881,625,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,458,792.66 : 1,611,129,271.73 = 638,845,058.78 : x
  2. Step 2: Convert to fraction form
    1,167,458,792.66/1,611,129,271.73 = 638,845,058.78/x
  3. Step 3: Cross multiply
    1,167,458,792.66x = 1,611,129,271.73 × 638,845,058.78
  4. Step 4: Simplify right side
    1,167,458,792.66x = 1,029,261,974,289,280,512
  5. Step 5: Solve for x
    x = 1,029,261,974,289,280,512/1,167,458,792.66
  6. Step 6: Final answer
    x = 881,625,956.11

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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.