Home / 140,210,071.12-193,490,498.54-76,631,694.51

Finding the Fourth Proportional to 140,210,071.12, 193,490,498.54 and 76,631,694.51

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Solution

The fourth proportional to 140,210,071.12, 193,490,498.54 and 76,631,694.51 is: 105,752,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,210,071.12 : 193,490,498.54 = 76,631,694.51 : x
  2. Step 2: Convert to fraction form
    140,210,071.12/193,490,498.54 = 76,631,694.51/x
  3. Step 3: Cross multiply
    140,210,071.12x = 193,490,498.54 × 76,631,694.51
  4. Step 4: Simplify right side
    140,210,071.12x = 14,827,504,775,191,378
  5. Step 5: Solve for x
    x = 14,827,504,775,191,378/140,210,071.12
  6. Step 6: Final answer
    x = 105,752,066.57

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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.