Home / 839,287,940,539.80-1,158,217,348,976.90-453,912,286,390.56

Finding the Fourth Proportional to 839,287,940,539.80, 1,158,217,348,976.90 and 453,912,286,390.56

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Solution

The fourth proportional to 839,287,940,539.80, 1,158,217,348,976.90 and 453,912,286,390.56 is: 626,398,950,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,287,940,539.80 : 1,158,217,348,976.90 = 453,912,286,390.56 : x
  2. Step 2: Convert to fraction form
    839,287,940,539.80/1,158,217,348,976.90 = 453,912,286,390.56/x
  3. Step 3: Cross multiply
    839,287,940,539.80x = 1,158,217,348,976.90 × 453,912,286,390.56
  4. Step 4: Simplify right side
    839,287,940,539.80x = 525,729,085,011,317,779,070,976
  5. Step 5: Solve for x
    x = 525,729,085,011,317,779,070,976/839,287,940,539.80
  6. Step 6: Final answer
    x = 626,398,950,368.79

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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.