Home / 1,921,340,154.81-2,881,444,859.91-871,470,979.77

Finding the Fourth Proportional to 1,921,340,154.81, 2,881,444,859.91 and 871,470,979.77

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Solution

The fourth proportional to 1,921,340,154.81, 2,881,444,859.91 and 871,470,979.77 is: 1,306,950,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,340,154.81 : 2,881,444,859.91 = 871,470,979.77 : x
  2. Step 2: Convert to fraction form
    1,921,340,154.81/2,881,444,859.91 = 871,470,979.77/x
  3. Step 3: Cross multiply
    1,921,340,154.81x = 2,881,444,859.91 × 871,470,979.77
  4. Step 4: Simplify right side
    1,921,340,154.81x = 2,511,095,575,218,997,760
  5. Step 5: Solve for x
    x = 2,511,095,575,218,997,760/1,921,340,154.81
  6. Step 6: Final answer
    x = 1,306,950,031.17

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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.