Home / 637,466,427.56-879,694,727.88-355,220,764.48

Finding the Fourth Proportional to 637,466,427.56, 879,694,727.88 and 355,220,764.48

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Solution

The fourth proportional to 637,466,427.56, 879,694,727.88 and 355,220,764.48 is: 490,199,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,466,427.56 : 879,694,727.88 = 355,220,764.48 : x
  2. Step 2: Convert to fraction form
    637,466,427.56/879,694,727.88 = 355,220,764.48/x
  3. Step 3: Cross multiply
    637,466,427.56x = 879,694,727.88 × 355,220,764.48
  4. Step 4: Simplify right side
    637,466,427.56x = 312,485,833,746,559,168
  5. Step 5: Solve for x
    x = 312,485,833,746,559,168/637,466,427.56
  6. Step 6: Final answer
    x = 490,199,672.07

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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.