Home / 1,919,027,343.31-2,878,541,429.69-692,195,692.75

Finding the Fourth Proportional to 1,919,027,343.31, 2,878,541,429.69 and 692,195,692.75

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Solution

The fourth proportional to 1,919,027,343.31, 2,878,541,429.69 and 692,195,692.75 is: 1,038,293,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,027,343.31 : 2,878,541,429.69 = 692,195,692.75 : x
  2. Step 2: Convert to fraction form
    1,919,027,343.31/2,878,541,429.69 = 692,195,692.75/x
  3. Step 3: Cross multiply
    1,919,027,343.31x = 2,878,541,429.69 × 692,195,692.75
  4. Step 4: Simplify right side
    1,919,027,343.31x = 1,992,513,979,028,379,136
  5. Step 5: Solve for x
    x = 1,992,513,979,028,379,136/1,919,027,343.31
  6. Step 6: Final answer
    x = 1,038,293,688.72

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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.