Home / 242,980,515.36-335,312,894.57-137,156,205.42

Finding the Fourth Proportional to 242,980,515.36, 335,312,894.57 and 137,156,205.42

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Solution

The fourth proportional to 242,980,515.36, 335,312,894.57 and 137,156,205.42 is: 189,275,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,980,515.36 : 335,312,894.57 = 137,156,205.42 : x
  2. Step 2: Convert to fraction form
    242,980,515.36/335,312,894.57 = 137,156,205.42/x
  3. Step 3: Cross multiply
    242,980,515.36x = 335,312,894.57 × 137,156,205.42
  4. Step 4: Simplify right side
    242,980,515.36x = 45,990,244,246,931,936
  5. Step 5: Solve for x
    x = 45,990,244,246,931,936/242,980,515.36
  6. Step 6: Final answer
    x = 189,275,441.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.