Home / 30,778,878.40-46,157,431.20-10,579,422.40

Finding the Fourth Proportional to 30,778,878.40, 46,157,431.20 and 10,579,422.40

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Solution

The fourth proportional to 30,778,878.40, 46,157,431.20 and 10,579,422.40 is: 15,865,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778,878.40 : 46,157,431.20 = 10,579,422.40 : x
  2. Step 2: Convert to fraction form
    30,778,878.40/46,157,431.20 = 10,579,422.40/x
  3. Step 3: Cross multiply
    30,778,878.40x = 46,157,431.20 × 10,579,422.40
  4. Step 4: Simplify right side
    30,778,878.40x = 488,318,961,563,738.94
  5. Step 5: Solve for x
    x = 488,318,961,563,738.94/30,778,878.40
  6. Step 6: Final answer
    x = 15,865,391.69

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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.