Home / 636,965,742,574.16-879,012,691,134.84-343,990,637,197.86

Finding the Fourth Proportional to 636,965,742,574.16, 879,012,691,134.84 and 343,990,637,197.86

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Solution

The fourth proportional to 636,965,742,574.16, 879,012,691,134.84 and 343,990,637,197.86 is: 474,707,061,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,965,742,574.16 : 879,012,691,134.84 = 343,990,637,197.86 : x
  2. Step 2: Convert to fraction form
    636,965,742,574.16/879,012,691,134.84 = 343,990,637,197.86/x
  3. Step 3: Cross multiply
    636,965,742,574.16x = 879,012,691,134.84 × 343,990,637,197.86
  4. Step 4: Simplify right side
    636,965,742,574.16x = 302,372,135,728,479,289,212,928
  5. Step 5: Solve for x
    x = 302,372,135,728,479,289,212,928/636,965,742,574.16
  6. Step 6: Final answer
    x = 474,707,061,178.06

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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.