Home / 1,293,475,315.40-1,940,496,408.30-638,740,003.40

Finding the Fourth Proportional to 1,293,475,315.40, 1,940,496,408.30 and 638,740,003.40

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Solution

The fourth proportional to 1,293,475,315.40, 1,940,496,408.30 and 638,740,003.40 is: 958,249,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,475,315.40 : 1,940,496,408.30 = 638,740,003.40 : x
  2. Step 2: Convert to fraction form
    1,293,475,315.40/1,940,496,408.30 = 638,740,003.40/x
  3. Step 3: Cross multiply
    1,293,475,315.40x = 1,940,496,408.30 × 638,740,003.40
  4. Step 4: Simplify right side
    1,293,475,315.40x = 1,239,472,682,435,229,696
  5. Step 5: Solve for x
    x = 1,239,472,682,435,229,696/1,293,475,315.40
  6. Step 6: Final answer
    x = 958,249,970.20

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1.5x scale

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.