Home / 290,154,910.74-435,289,807.05-82,895,085.90

Finding the Fourth Proportional to 290,154,910.74, 435,289,807.05 and 82,895,085.90

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Solution

The fourth proportional to 290,154,910.74, 435,289,807.05 and 82,895,085.90 is: 124,359,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,154,910.74 : 435,289,807.05 = 82,895,085.90 : x
  2. Step 2: Convert to fraction form
    290,154,910.74/435,289,807.05 = 82,895,085.90/x
  3. Step 3: Cross multiply
    290,154,910.74x = 435,289,807.05 × 82,895,085.90
  4. Step 4: Simplify right side
    290,154,910.74x = 36,083,385,946,804,176
  5. Step 5: Solve for x
    x = 36,083,385,946,804,176/290,154,910.74
  6. Step 6: Final answer
    x = 124,359,039.30

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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.