Home / 201,335,512.30-302,003,268.45-128,776,101.10

Finding the Fourth Proportional to 201,335,512.30, 302,003,268.45 and 128,776,101.10

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Solution

The fourth proportional to 201,335,512.30, 302,003,268.45 and 128,776,101.10 is: 193,164,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,335,512.30 : 302,003,268.45 = 128,776,101.10 : x
  2. Step 2: Convert to fraction form
    201,335,512.30/302,003,268.45 = 128,776,101.10/x
  3. Step 3: Cross multiply
    201,335,512.30x = 302,003,268.45 × 128,776,101.10
  4. Step 4: Simplify right side
    201,335,512.30x = 38,890,803,430,447,640
  5. Step 5: Solve for x
    x = 38,890,803,430,447,640/201,335,512.30
  6. Step 6: Final answer
    x = 193,164,151.65

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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.