Home / 202,723,612.02-279,989,531.28-137,420,141.94

Finding the Fourth Proportional to 202,723,612.02, 279,989,531.28 and 137,420,141.94

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Solution

The fourth proportional to 202,723,612.02, 279,989,531.28 and 137,420,141.94 is: 189,796,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,723,612.02 : 279,989,531.28 = 137,420,141.94 : x
  2. Step 2: Convert to fraction form
    202,723,612.02/279,989,531.28 = 137,420,141.94/x
  3. Step 3: Cross multiply
    202,723,612.02x = 279,989,531.28 × 137,420,141.94
  4. Step 4: Simplify right side
    202,723,612.02x = 38,476,201,130,211,664
  5. Step 5: Solve for x
    x = 38,476,201,130,211,664/202,723,612.02
  6. Step 6: Final answer
    x = 189,796,347.58

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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.