Home / 218,878,398.10-302,049,949.89-121,093,953.94

Finding the Fourth Proportional to 218,878,398.10, 302,049,949.89 and 121,093,953.94

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Solution

The fourth proportional to 218,878,398.10, 302,049,949.89 and 121,093,953.94 is: 167,108,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,878,398.10 : 302,049,949.89 = 121,093,953.94 : x
  2. Step 2: Convert to fraction form
    218,878,398.10/302,049,949.89 = 121,093,953.94/x
  3. Step 3: Cross multiply
    218,878,398.10x = 302,049,949.89 × 121,093,953.94
  4. Step 4: Simplify right side
    218,878,398.10x = 36,576,422,719,558,968
  5. Step 5: Solve for x
    x = 36,576,422,719,558,968/218,878,398.10
  6. Step 6: Final answer
    x = 167,108,417.45

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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.