Home / 1,123,808,460.81-1,686,293,934.31-815,458,297.98

Finding the Fourth Proportional to 1,123,808,460.81, 1,686,293,934.31 and 815,458,297.98

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Solution

The fourth proportional to 1,123,808,460.81, 1,686,293,934.31 and 815,458,297.98 is: 1,223,609,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,808,460.81 : 1,686,293,934.31 = 815,458,297.98 : x
  2. Step 2: Convert to fraction form
    1,123,808,460.81/1,686,293,934.31 = 815,458,297.98/x
  3. Step 3: Cross multiply
    1,123,808,460.81x = 1,686,293,934.31 × 815,458,297.98
  4. Step 4: Simplify right side
    1,123,808,460.81x = 1,375,102,381,564,391,936
  5. Step 5: Solve for x
    x = 1,375,102,381,564,391,936/1,123,808,460.81
  6. Step 6: Final answer
    x = 1,223,609,208.79

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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.