Home / 1,358,127,029.70-2,037,190,544.55-388,778,645.70

Finding the Fourth Proportional to 1,358,127,029.70, 2,037,190,544.55 and 388,778,645.70

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Solution

The fourth proportional to 1,358,127,029.70, 2,037,190,544.55 and 388,778,645.70 is: 583,167,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,127,029.70 : 2,037,190,544.55 = 388,778,645.70 : x
  2. Step 2: Convert to fraction form
    1,358,127,029.70/2,037,190,544.55 = 388,778,645.70/x
  3. Step 3: Cross multiply
    1,358,127,029.70x = 2,037,190,544.55 × 388,778,645.70
  4. Step 4: Simplify right side
    1,358,127,029.70x = 792,016,180,942,994,432
  5. Step 5: Solve for x
    x = 792,016,180,942,994,432/1,358,127,029.70
  6. Step 6: Final answer
    x = 583,167,968.55

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Double scale
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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.