Home / 856,800,214,885.20-1,283,788,165,197.60-497,643,987,660.20

Finding the Fourth Proportional to 856,800,214,885.20, 1,283,788,165,197.60 and 497,643,987,660.20

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Solution

The fourth proportional to 856,800,214,885.20, 1,283,788,165,197.60 and 497,643,987,660.20 is: 745,645,776,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,800,214,885.20 : 1,283,788,165,197.60 = 497,643,987,660.20 : x
  2. Step 2: Convert to fraction form
    856,800,214,885.20/1,283,788,165,197.60 = 497,643,987,660.20/x
  3. Step 3: Cross multiply
    856,800,214,885.20x = 1,283,788,165,197.60 × 497,643,987,660.20
  4. Step 4: Simplify right side
    856,800,214,885.20x = 638,869,461,839,905,371,979,776
  5. Step 5: Solve for x
    x = 638,869,461,839,905,371,979,776/856,800,214,885.20
  6. Step 6: Final answer
    x = 745,645,776,857.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.