Home / 371,027,075.46-512,216,147.43-286,068,638.22

Finding the Fourth Proportional to 371,027,075.46, 512,216,147.43 and 286,068,638.22

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Solution

The fourth proportional to 371,027,075.46, 512,216,147.43 and 286,068,638.22 is: 394,927,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,027,075.46 : 512,216,147.43 = 286,068,638.22 : x
  2. Step 2: Convert to fraction form
    371,027,075.46/512,216,147.43 = 286,068,638.22/x
  3. Step 3: Cross multiply
    371,027,075.46x = 512,216,147.43 × 286,068,638.22
  4. Step 4: Simplify right side
    371,027,075.46x = 146,528,975,769,594,880
  5. Step 5: Solve for x
    x = 146,528,975,769,594,880/371,027,075.46
  6. Step 6: Final answer
    x = 394,927,986.29

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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.