Home / 1,909,106,643,528.70-2,638,013,392,868.80-1,359,443,672,640.70

Finding the Fourth Proportional to 1,909,106,643,528.70, 2,638,013,392,868.80 and 1,359,443,672,640.70

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Solution

The fourth proportional to 1,909,106,643,528.70, 2,638,013,392,868.80 and 1,359,443,672,640.70 is: 1,878,486,268,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,106,643,528.70 : 2,638,013,392,868.80 = 1,359,443,672,640.70 : x
  2. Step 2: Convert to fraction form
    1,909,106,643,528.70/2,638,013,392,868.80 = 1,359,443,672,640.70/x
  3. Step 3: Cross multiply
    1,909,106,643,528.70x = 2,638,013,392,868.80 × 1,359,443,672,640.70
  4. Step 4: Simplify right side
    1,909,106,643,528.70x = 3,586,230,615,276,914,896,535,552
  5. Step 5: Solve for x
    x = 3,586,230,615,276,914,896,535,552/1,909,106,643,528.70
  6. Step 6: Final answer
    x = 1,878,486,268,660.35

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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.