Home / 12,870,203,515.53-19,304,779,823.06-4,478,029,957.77

Finding the Fourth Proportional to 12,870,203,515.53, 19,304,779,823.06 and 4,478,029,957.77

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Solution

The fourth proportional to 12,870,203,515.53, 19,304,779,823.06 and 4,478,029,957.77 is: 6,716,862,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870,203,515.53 : 19,304,779,823.06 = 4,478,029,957.77 : x
  2. Step 2: Convert to fraction form
    12,870,203,515.53/19,304,779,823.06 = 4,478,029,957.77/x
  3. Step 3: Cross multiply
    12,870,203,515.53x = 19,304,779,823.06 × 4,478,029,957.77
  4. Step 4: Simplify right side
    12,870,203,515.53x = 86,447,382,375,794,147,328
  5. Step 5: Solve for x
    x = 86,447,382,375,794,147,328/12,870,203,515.53
  6. Step 6: Final answer
    x = 6,716,862,112.67

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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.