Home / 128,908,066.40-193,078,664.40-111,901,954.40

Finding the Fourth Proportional to 128,908,066.40, 193,078,664.40 and 111,901,954.40

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Solution

The fourth proportional to 128,908,066.40, 193,078,664.40 and 111,901,954.40 is: 167,606,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,908,066.40 : 193,078,664.40 = 111,901,954.40 : x
  2. Step 2: Convert to fraction form
    128,908,066.40/193,078,664.40 = 111,901,954.40/x
  3. Step 3: Cross multiply
    128,908,066.40x = 193,078,664.40 × 111,901,954.40
  4. Step 4: Simplify right side
    128,908,066.40x = 21,605,879,899,301,704
  5. Step 5: Solve for x
    x = 21,605,879,899,301,704/128,908,066.40
  6. Step 6: Final answer
    x = 167,606,888.40

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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.