Home / 442,871,480.40-664,307,220.60-258,449,643.60

Finding the Fourth Proportional to 442,871,480.40, 664,307,220.60 and 258,449,643.60

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Solution

The fourth proportional to 442,871,480.40, 664,307,220.60 and 258,449,643.60 is: 387,674,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,480.40 : 664,307,220.60 = 258,449,643.60 : x
  2. Step 2: Convert to fraction form
    442,871,480.40/664,307,220.60 = 258,449,643.60/x
  3. Step 3: Cross multiply
    442,871,480.40x = 664,307,220.60 × 258,449,643.60
  4. Step 4: Simplify right side
    442,871,480.40x = 171,689,964,404,976,576
  5. Step 5: Solve for x
    x = 171,689,964,404,976,576/442,871,480.40
  6. Step 6: Final answer
    x = 387,674,465.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.