Home / 1,293,907,712.18-1,938,886,606.82-768,241,671.17

Finding the Fourth Proportional to 1,293,907,712.18, 1,938,886,606.82 and 768,241,671.17

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Solution

The fourth proportional to 1,293,907,712.18, 1,938,886,606.82 and 768,241,671.17 is: 1,151,189,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,907,712.18 : 1,938,886,606.82 = 768,241,671.17 : x
  2. Step 2: Convert to fraction form
    1,293,907,712.18/1,938,886,606.82 = 768,241,671.17/x
  3. Step 3: Cross multiply
    1,293,907,712.18x = 1,938,886,606.82 × 768,241,671.17
  4. Step 4: Simplify right side
    1,293,907,712.18x = 1,489,533,487,024,753,664
  5. Step 5: Solve for x
    x = 1,489,533,487,024,753,664/1,293,907,712.18
  6. Step 6: Final answer
    x = 1,151,189,897.86

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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.