Home / 786,750,948.11-1,179,544,632.59-475,789,431.95

Finding the Fourth Proportional to 786,750,948.11, 1,179,544,632.59 and 475,789,431.95

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Solution

The fourth proportional to 786,750,948.11, 1,179,544,632.59 and 475,789,431.95 is: 713,332,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,750,948.11 : 1,179,544,632.59 = 475,789,431.95 : x
  2. Step 2: Convert to fraction form
    786,750,948.11/1,179,544,632.59 = 475,789,431.95/x
  3. Step 3: Cross multiply
    786,750,948.11x = 1,179,544,632.59 × 475,789,431.95
  4. Step 4: Simplify right side
    786,750,948.11x = 561,214,870,691,390,912
  5. Step 5: Solve for x
    x = 561,214,870,691,390,912/786,750,948.11
  6. Step 6: Final answer
    x = 713,332,309.35

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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.