Home / 814,169,840.96-1,123,553,530.14-442,890,986.60

Finding the Fourth Proportional to 814,169,840.96, 1,123,553,530.14 and 442,890,986.60

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Solution

The fourth proportional to 814,169,840.96, 1,123,553,530.14 and 442,890,986.60 is: 611,189,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,169,840.96 : 1,123,553,530.14 = 442,890,986.60 : x
  2. Step 2: Convert to fraction form
    814,169,840.96/1,123,553,530.14 = 442,890,986.60/x
  3. Step 3: Cross multiply
    814,169,840.96x = 1,123,553,530.14 × 442,890,986.60
  4. Step 4: Simplify right side
    814,169,840.96x = 497,611,731,461,617,536
  5. Step 5: Solve for x
    x = 497,611,731,461,617,536/814,169,840.96
  6. Step 6: Final answer
    x = 611,189,098.92

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1.5x scale

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.