Home / 13,109,498,435.72-19,655,792,979.60-5,142,471,674.40

Finding the Fourth Proportional to 13,109,498,435.72, 19,655,792,979.60 and 5,142,471,674.40

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Solution

The fourth proportional to 13,109,498,435.72, 19,655,792,979.60 and 5,142,471,674.40 is: 7,710,390,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,498,435.72 : 19,655,792,979.60 = 5,142,471,674.40 : x
  2. Step 2: Convert to fraction form
    13,109,498,435.72/19,655,792,979.60 = 5,142,471,674.40/x
  3. Step 3: Cross multiply
    13,109,498,435.72x = 19,655,792,979.60 × 5,142,471,674.40
  4. Step 4: Simplify right side
    13,109,498,435.72x = 101,079,358,635,463,360,512
  5. Step 5: Solve for x
    x = 101,079,358,635,463,360,512/13,109,498,435.72
  6. Step 6: Final answer
    x = 7,710,390,991.01

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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.