Home / 636,965,742,685.34-879,012,691,288.65-343,990,637,309.36

Finding the Fourth Proportional to 636,965,742,685.34, 879,012,691,288.65 and 343,990,637,309.36

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Solution

The fourth proportional to 636,965,742,685.34, 879,012,691,288.65 and 343,990,637,309.36 is: 474,707,061,332.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,965,742,685.34 : 879,012,691,288.65 = 343,990,637,309.36 : x
  2. Step 2: Convert to fraction form
    636,965,742,685.34/879,012,691,288.65 = 343,990,637,309.36/x
  3. Step 3: Cross multiply
    636,965,742,685.34x = 879,012,691,288.65 × 343,990,637,309.36
  4. Step 4: Simplify right side
    636,965,742,685.34x = 302,372,135,879,398,400,196,608
  5. Step 5: Solve for x
    x = 302,372,135,879,398,400,196,608/636,965,742,685.34
  6. Step 6: Final answer
    x = 474,707,061,332.14

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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.