Home / 12,998,757,863.81-19,484,528,218.76-5,439,873,381.57

Finding the Fourth Proportional to 12,998,757,863.81, 19,484,528,218.76 and 5,439,873,381.57

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Solution

The fourth proportional to 12,998,757,863.81, 19,484,528,218.76 and 5,439,873,381.57 is: 8,154,114,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,757,863.81 : 19,484,528,218.76 = 5,439,873,381.57 : x
  2. Step 2: Convert to fraction form
    12,998,757,863.81/19,484,528,218.76 = 5,439,873,381.57/x
  3. Step 3: Cross multiply
    12,998,757,863.81x = 19,484,528,218.76 × 5,439,873,381.57
  4. Step 4: Simplify right side
    12,998,757,863.81x = 105,993,366,409,692,921,856
  5. Step 5: Solve for x
    x = 105,993,366,409,692,921,856/12,998,757,863.81
  6. Step 6: Final answer
    x = 8,154,114,994.69

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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.