Home / 465,097,973,389.47-641,954,623,013.95-302,921,747,847.09

Finding the Fourth Proportional to 465,097,973,389.47, 641,954,623,013.95 and 302,921,747,847.09

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Solution

The fourth proportional to 465,097,973,389.47, 641,954,623,013.95 and 302,921,747,847.09 is: 418,109,790,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,097,973,389.47 : 641,954,623,013.95 = 302,921,747,847.09 : x
  2. Step 2: Convert to fraction form
    465,097,973,389.47/641,954,623,013.95 = 302,921,747,847.09/x
  3. Step 3: Cross multiply
    465,097,973,389.47x = 641,954,623,013.95 × 302,921,747,847.09
  4. Step 4: Simplify right side
    465,097,973,389.47x = 194,462,016,441,905,492,000,768
  5. Step 5: Solve for x
    x = 194,462,016,441,905,492,000,768/465,097,973,389.47
  6. Step 6: Final answer
    x = 418,109,790,986.05

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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.