Home / 782,586,534.87-1,079,954,889.35-430,154,991.36

Finding the Fourth Proportional to 782,586,534.87, 1,079,954,889.35 and 430,154,991.36

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Solution

The fourth proportional to 782,586,534.87, 1,079,954,889.35 and 430,154,991.36 is: 593,605,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,586,534.87 : 1,079,954,889.35 = 430,154,991.36 : x
  2. Step 2: Convert to fraction form
    782,586,534.87/1,079,954,889.35 = 430,154,991.36/x
  3. Step 3: Cross multiply
    782,586,534.87x = 1,079,954,889.35 × 430,154,991.36
  4. Step 4: Simplify right side
    782,586,534.87x = 464,547,986,095,388,288
  5. Step 5: Solve for x
    x = 464,547,986,095,388,288/782,586,534.87
  6. Step 6: Final answer
    x = 593,605,902.22

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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.