Home / 13,109,498,441.22-19,655,792,987.86-5,142,471,679.89

Finding the Fourth Proportional to 13,109,498,441.22, 19,655,792,987.86 and 5,142,471,679.89

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Solution

The fourth proportional to 13,109,498,441.22, 19,655,792,987.86 and 5,142,471,679.89 is: 7,710,390,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,498,441.22 : 19,655,792,987.86 = 5,142,471,679.89 : x
  2. Step 2: Convert to fraction form
    13,109,498,441.22/19,655,792,987.86 = 5,142,471,679.89/x
  3. Step 3: Cross multiply
    13,109,498,441.22x = 19,655,792,987.86 × 5,142,471,679.89
  4. Step 4: Simplify right side
    13,109,498,441.22x = 101,079,358,785,850,507,264
  5. Step 5: Solve for x
    x = 101,079,358,785,850,507,264/13,109,498,441.22
  6. Step 6: Final answer
    x = 7,710,390,999.25

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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.