Home / 1,225,281,355.94-1,690,899,062.73-668,366,879.78

Finding the Fourth Proportional to 1,225,281,355.94, 1,690,899,062.73 and 668,366,879.78

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Solution

The fourth proportional to 1,225,281,355.94, 1,690,899,062.73 and 668,366,879.78 is: 922,352,180.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,281,355.94 : 1,690,899,062.73 = 668,366,879.78 : x
  2. Step 2: Convert to fraction form
    1,225,281,355.94/1,690,899,062.73 = 668,366,879.78/x
  3. Step 3: Cross multiply
    1,225,281,355.94x = 1,690,899,062.73 × 668,366,879.78
  4. Step 4: Simplify right side
    1,225,281,355.94x = 1,130,140,930,579,776,512
  5. Step 5: Solve for x
    x = 1,130,140,930,579,776,512/1,225,281,355.94
  6. Step 6: Final answer
    x = 922,352,180.67

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1.5x scale

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.