Home / 13,109,498,438.21-19,655,792,983.36-5,142,471,676.89

Finding the Fourth Proportional to 13,109,498,438.21, 19,655,792,983.36 and 5,142,471,676.89

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Solution

The fourth proportional to 13,109,498,438.21, 19,655,792,983.36 and 5,142,471,676.89 is: 7,710,390,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,498,438.21 : 19,655,792,983.36 = 5,142,471,676.89 : x
  2. Step 2: Convert to fraction form
    13,109,498,438.21/19,655,792,983.36 = 5,142,471,676.89/x
  3. Step 3: Cross multiply
    13,109,498,438.21x = 19,655,792,983.36 × 5,142,471,676.89
  4. Step 4: Simplify right side
    13,109,498,438.21x = 101,079,358,703,742,009,344
  5. Step 5: Solve for x
    x = 101,079,358,703,742,009,344/13,109,498,438.21
  6. Step 6: Final answer
    x = 7,710,390,994.76

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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.