Home / 1,238,426,997,789.90-1,709,082,226,273.50-689,718,214,736.50

Finding the Fourth Proportional to 1,238,426,997,789.90, 1,709,082,226,273.50 and 689,718,214,736.50

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Solution

The fourth proportional to 1,238,426,997,789.90, 1,709,082,226,273.50 and 689,718,214,736.50 is: 951,840,636,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,426,997,789.90 : 1,709,082,226,273.50 = 689,718,214,736.50 : x
  2. Step 2: Convert to fraction form
    1,238,426,997,789.90/1,709,082,226,273.50 = 689,718,214,736.50/x
  3. Step 3: Cross multiply
    1,238,426,997,789.90x = 1,709,082,226,273.50 × 689,718,214,736.50
  4. Step 4: Simplify right side
    1,238,426,997,789.90x = 1,178,785,141,943,241,403,269,120
  5. Step 5: Solve for x
    x = 1,178,785,141,943,241,403,269,120/1,238,426,997,789.90
  6. Step 6: Final answer
    x = 951,840,636,587.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.