Home / 551,918,727.21-761,765,712.27-317,098,864.17

Finding the Fourth Proportional to 551,918,727.21, 761,765,712.27 and 317,098,864.17

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Solution

The fourth proportional to 551,918,727.21, 761,765,712.27 and 317,098,864.17 is: 437,664,152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,918,727.21 : 761,765,712.27 = 317,098,864.17 : x
  2. Step 2: Convert to fraction form
    551,918,727.21/761,765,712.27 = 317,098,864.17/x
  3. Step 3: Cross multiply
    551,918,727.21x = 761,765,712.27 × 317,098,864.17
  4. Step 4: Simplify right side
    551,918,727.21x = 241,555,042,124,468,032
  5. Step 5: Solve for x
    x = 241,555,042,124,468,032/551,918,727.21
  6. Step 6: Final answer
    x = 437,664,152.74

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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.