Home / 638,479,800.56-881,101,735.05-345,124,368.56

Finding the Fourth Proportional to 638,479,800.56, 881,101,735.05 and 345,124,368.56

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Solution

The fourth proportional to 638,479,800.56, 881,101,735.05 and 345,124,368.56 is: 476,271,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,479,800.56 : 881,101,735.05 = 345,124,368.56 : x
  2. Step 2: Convert to fraction form
    638,479,800.56/881,101,735.05 = 345,124,368.56/x
  3. Step 3: Cross multiply
    638,479,800.56x = 881,101,735.05 × 345,124,368.56
  4. Step 4: Simplify right side
    638,479,800.56x = 304,089,679,941,846,144
  5. Step 5: Solve for x
    x = 304,089,679,941,846,144/638,479,800.56
  6. Step 6: Final answer
    x = 476,271,417.95

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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.