Home / 811,842,958.84-1,120,343,282.88-440,564,990.22

Finding the Fourth Proportional to 811,842,958.84, 1,120,343,282.88 and 440,564,990.22

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Solution

The fourth proportional to 811,842,958.84, 1,120,343,282.88 and 440,564,990.22 is: 607,979,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,842,958.84 : 1,120,343,282.88 = 440,564,990.22 : x
  2. Step 2: Convert to fraction form
    811,842,958.84/1,120,343,282.88 = 440,564,990.22/x
  3. Step 3: Cross multiply
    811,842,958.84x = 1,120,343,282.88 × 440,564,990.22
  4. Step 4: Simplify right side
    811,842,958.84x = 493,584,027,459,956,736
  5. Step 5: Solve for x
    x = 493,584,027,459,956,736/811,842,958.84
  6. Step 6: Final answer
    x = 607,979,686.32

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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.