Home / 1,293,907,809.30-1,938,886,752.51-768,241,769.10

Finding the Fourth Proportional to 1,293,907,809.30, 1,938,886,752.51 and 768,241,769.10

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Solution

The fourth proportional to 1,293,907,809.30, 1,938,886,752.51 and 768,241,769.10 is: 1,151,190,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,907,809.30 : 1,938,886,752.51 = 768,241,769.10 : x
  2. Step 2: Convert to fraction form
    1,293,907,809.30/1,938,886,752.51 = 768,241,769.10/x
  3. Step 3: Cross multiply
    1,293,907,809.30x = 1,938,886,752.51 × 768,241,769.10
  4. Step 4: Simplify right side
    1,293,907,809.30x = 1,489,533,788,832,836,352
  5. Step 5: Solve for x
    x = 1,489,533,788,832,836,352/1,293,907,809.30
  6. Step 6: Final answer
    x = 1,151,190,044.71

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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.