Home / 840,817,749.38-1,160,338,232.58-464,466,540.56

Finding the Fourth Proportional to 840,817,749.38, 1,160,338,232.58 and 464,466,540.56

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Solution

The fourth proportional to 840,817,749.38, 1,160,338,232.58 and 464,466,540.56 is: 640,969,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,817,749.38 : 1,160,338,232.58 = 464,466,540.56 : x
  2. Step 2: Convert to fraction form
    840,817,749.38/1,160,338,232.58 = 464,466,540.56/x
  3. Step 3: Cross multiply
    840,817,749.38x = 1,160,338,232.58 × 464,466,540.56
  4. Step 4: Simplify right side
    840,817,749.38x = 538,938,284,765,937,280
  5. Step 5: Solve for x
    x = 538,938,284,765,937,280/840,817,749.38
  6. Step 6: Final answer
    x = 640,969,205.47

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1.5x scale

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.