Home / 1,198,829,961.09-1,797,426,606.33-638,675,536.77

Finding the Fourth Proportional to 1,198,829,961.09, 1,797,426,606.33 and 638,675,536.77

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Solution

The fourth proportional to 1,198,829,961.09, 1,797,426,606.33 and 638,675,536.77 is: 957,577,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,829,961.09 : 1,797,426,606.33 = 638,675,536.77 : x
  2. Step 2: Convert to fraction form
    1,198,829,961.09/1,797,426,606.33 = 638,675,536.77/x
  3. Step 3: Cross multiply
    1,198,829,961.09x = 1,797,426,606.33 × 638,675,536.77
  4. Step 4: Simplify right side
    1,198,829,961.09x = 1,147,972,402,602,492,160
  5. Step 5: Solve for x
    x = 1,147,972,402,602,492,160/1,198,829,961.09
  6. Step 6: Final answer
    x = 957,577,337.79

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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.