Home / 221,039,280.02-305,028,860.98-121,917,898.16

Finding the Fourth Proportional to 221,039,280.02, 305,028,860.98 and 121,917,898.16

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Solution

The fourth proportional to 221,039,280.02, 305,028,860.98 and 121,917,898.16 is: 168,243,751.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,039,280.02 : 305,028,860.98 = 121,917,898.16 : x
  2. Step 2: Convert to fraction form
    221,039,280.02/305,028,860.98 = 121,917,898.16/x
  3. Step 3: Cross multiply
    221,039,280.02x = 305,028,860.98 × 121,917,898.16
  4. Step 4: Simplify right side
    221,039,280.02x = 37,188,477,608,820,440
  5. Step 5: Solve for x
    x = 37,188,477,608,820,440/221,039,280.02
  6. Step 6: Final answer
    x = 168,243,751.09

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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.