Home / 40,135,557,815.86-55,388,119,510.72-21,825,686,366.38

Finding the Fourth Proportional to 40,135,557,815.86, 55,388,119,510.72 and 21,825,686,366.38

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Solution

The fourth proportional to 40,135,557,815.86, 55,388,119,510.72 and 21,825,686,366.38 is: 30,120,018,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135,557,815.86 : 55,388,119,510.72 = 21,825,686,366.38 : x
  2. Step 2: Convert to fraction form
    40,135,557,815.86/55,388,119,510.72 = 21,825,686,366.38/x
  3. Step 3: Cross multiply
    40,135,557,815.86x = 55,388,119,510.72 × 21,825,686,366.38
  4. Step 4: Simplify right side
    40,135,557,815.86x = 1,208,883,724,864,547,717,120
  5. Step 5: Solve for x
    x = 1,208,883,724,864,547,717,120/40,135,557,815.86
  6. Step 6: Final answer
    x = 30,120,018,025.19

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1.5x scale

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.