Home / 315,813,089.16-435,792,815.28-174,681,272.25

Finding the Fourth Proportional to 315,813,089.16, 435,792,815.28 and 174,681,272.25

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Solution

The fourth proportional to 315,813,089.16, 435,792,815.28 and 174,681,272.25 is: 241,043,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,813,089.16 : 435,792,815.28 = 174,681,272.25 : x
  2. Step 2: Convert to fraction form
    315,813,089.16/435,792,815.28 = 174,681,272.25/x
  3. Step 3: Cross multiply
    315,813,089.16x = 435,792,815.28 × 174,681,272.25
  4. Step 4: Simplify right side
    315,813,089.16x = 76,124,843,410,519,632
  5. Step 5: Solve for x
    x = 76,124,843,410,519,632/315,813,089.16
  6. Step 6: Final answer
    x = 241,043,978.30

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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.