Home / 622,085,285.80-933,127,928.70-391,306,047.40

Finding the Fourth Proportional to 622,085,285.80, 933,127,928.70 and 391,306,047.40

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Solution

The fourth proportional to 622,085,285.80, 933,127,928.70 and 391,306,047.40 is: 586,959,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,085,285.80 : 933,127,928.70 = 391,306,047.40 : x
  2. Step 2: Convert to fraction form
    622,085,285.80/933,127,928.70 = 391,306,047.40/x
  3. Step 3: Cross multiply
    622,085,285.80x = 933,127,928.70 × 391,306,047.40
  4. Step 4: Simplify right side
    622,085,285.80x = 365,138,601,498,146,048
  5. Step 5: Solve for x
    x = 365,138,601,498,146,048/622,085,285.80
  6. Step 6: Final answer
    x = 586,959,071.10

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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.