Home / 20,718,661.20-31,077,991.80-16,435,640.40

Finding the Fourth Proportional to 20,718,661.20, 31,077,991.80 and 16,435,640.40

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Solution

The fourth proportional to 20,718,661.20, 31,077,991.80 and 16,435,640.40 is: 24,653,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,661.20 : 31,077,991.80 = 16,435,640.40 : x
  2. Step 2: Convert to fraction form
    20,718,661.20/31,077,991.80 = 16,435,640.40/x
  3. Step 3: Cross multiply
    20,718,661.20x = 31,077,991.80 × 16,435,640.40
  4. Step 4: Simplify right side
    20,718,661.20x = 510,786,697,578,948.75
  5. Step 5: Solve for x
    x = 510,786,697,578,948.75/20,718,661.20
  6. Step 6: Final answer
    x = 24,653,460.60

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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.