Home / 1,195,338,983.13-1,789,330,995.21-779,921,307.45

Finding the Fourth Proportional to 1,195,338,983.13, 1,789,330,995.21 and 779,921,307.45

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Solution

The fourth proportional to 1,195,338,983.13, 1,789,330,995.21 and 779,921,307.45 is: 1,167,482,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,338,983.13 : 1,789,330,995.21 = 779,921,307.45 : x
  2. Step 2: Convert to fraction form
    1,195,338,983.13/1,789,330,995.21 = 779,921,307.45/x
  3. Step 3: Cross multiply
    1,195,338,983.13x = 1,789,330,995.21 × 779,921,307.45
  4. Step 4: Simplify right side
    1,195,338,983.13x = 1,395,537,369,244,993,024
  5. Step 5: Solve for x
    x = 1,395,537,369,244,993,024/1,195,338,983.13
  6. Step 6: Final answer
    x = 1,167,482,520.81

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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.