Home / 1,243,056,788.84-1,715,418,539.34-686,139,953.96

Finding the Fourth Proportional to 1,243,056,788.84, 1,715,418,539.34 and 686,139,953.96

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Solution

The fourth proportional to 1,243,056,788.84, 1,715,418,539.34 and 686,139,953.96 is: 946,873,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,056,788.84 : 1,715,418,539.34 = 686,139,953.96 : x
  2. Step 2: Convert to fraction form
    1,243,056,788.84/1,715,418,539.34 = 686,139,953.96/x
  3. Step 3: Cross multiply
    1,243,056,788.84x = 1,715,418,539.34 × 686,139,953.96
  4. Step 4: Simplify right side
    1,243,056,788.84x = 1,177,017,197,604,878,080
  5. Step 5: Solve for x
    x = 1,177,017,197,604,878,080/1,243,056,788.84
  6. Step 6: Final answer
    x = 946,873,230.71

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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.