Home / 628,264,973.12-867,099,920.42-477,309,220.50

Finding the Fourth Proportional to 628,264,973.12, 867,099,920.42 and 477,309,220.50

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Solution

The fourth proportional to 628,264,973.12, 867,099,920.42 and 477,309,220.50 is: 658,758,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,264,973.12 : 867,099,920.42 = 477,309,220.50 : x
  2. Step 2: Convert to fraction form
    628,264,973.12/867,099,920.42 = 477,309,220.50/x
  3. Step 3: Cross multiply
    628,264,973.12x = 867,099,920.42 × 477,309,220.50
  4. Step 4: Simplify right side
    628,264,973.12x = 413,874,787,111,282,240
  5. Step 5: Solve for x
    x = 413,874,787,111,282,240/628,264,973.12
  6. Step 6: Final answer
    x = 658,758,334.17

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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.