Home / 857,304,071.40-1,285,956,107.10-851,257,453.80

Finding the Fourth Proportional to 857,304,071.40, 1,285,956,107.10 and 851,257,453.80

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Solution

The fourth proportional to 857,304,071.40, 1,285,956,107.10 and 851,257,453.80 is: 1,276,886,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,304,071.40 : 1,285,956,107.10 = 851,257,453.80 : x
  2. Step 2: Convert to fraction form
    857,304,071.40/1,285,956,107.10 = 851,257,453.80/x
  3. Step 3: Cross multiply
    857,304,071.40x = 1,285,956,107.10 × 851,257,453.80
  4. Step 4: Simplify right side
    857,304,071.40x = 1,094,679,721,428,505,984
  5. Step 5: Solve for x
    x = 1,094,679,721,428,505,984/857,304,071.40
  6. Step 6: Final answer
    x = 1,276,886,180.70

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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.