Home / 272,617,256.70-408,925,885.05-163,778,139.90

Finding the Fourth Proportional to 272,617,256.70, 408,925,885.05 and 163,778,139.90

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Solution

The fourth proportional to 272,617,256.70, 408,925,885.05 and 163,778,139.90 is: 245,667,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,617,256.70 : 408,925,885.05 = 163,778,139.90 : x
  2. Step 2: Convert to fraction form
    272,617,256.70/408,925,885.05 = 163,778,139.90/x
  3. Step 3: Cross multiply
    272,617,256.70x = 408,925,885.05 × 163,778,139.90
  4. Step 4: Simplify right side
    272,617,256.70x = 66,973,120,810,450,224
  5. Step 5: Solve for x
    x = 66,973,120,810,450,224/272,617,256.70
  6. Step 6: Final answer
    x = 245,667,209.85

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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.