Home / 636,965,742,676.20-879,012,691,276.05-343,990,637,300.25

Finding the Fourth Proportional to 636,965,742,676.20, 879,012,691,276.05 and 343,990,637,300.25

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Solution

The fourth proportional to 636,965,742,676.20, 879,012,691,276.05 and 343,990,637,300.25 is: 474,707,061,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,965,742,676.20 : 879,012,691,276.05 = 343,990,637,300.25 : x
  2. Step 2: Convert to fraction form
    636,965,742,676.20/879,012,691,276.05 = 343,990,637,300.25/x
  3. Step 3: Cross multiply
    636,965,742,676.20x = 879,012,691,276.05 × 343,990,637,300.25
  4. Step 4: Simplify right side
    636,965,742,676.20x = 302,372,135,867,056,341,909,504
  5. Step 5: Solve for x
    x = 302,372,135,867,056,341,909,504/636,965,742,676.20
  6. Step 6: Final answer
    x = 474,707,061,319.57

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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.