Home / 158,104,128,845.16-218,177,578,427.94-85,844,539,828.40

Finding the Fourth Proportional to 158,104,128,845.16, 218,177,578,427.94 and 85,844,539,828.40

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Solution

The fourth proportional to 158,104,128,845.16, 218,177,578,427.94 and 85,844,539,828.40 is: 118,462,142,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,104,128,845.16 : 218,177,578,427.94 = 85,844,539,828.40 : x
  2. Step 2: Convert to fraction form
    158,104,128,845.16/218,177,578,427.94 = 85,844,539,828.40/x
  3. Step 3: Cross multiply
    158,104,128,845.16x = 218,177,578,427.94 × 85,844,539,828.40
  4. Step 4: Simplify right side
    158,104,128,845.16x = 18,729,353,821,020,286,353,408
  5. Step 5: Solve for x
    x = 18,729,353,821,020,286,353,408/158,104,128,845.16
  6. Step 6: Final answer
    x = 118,462,142,373.04

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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.