Home / 290,142,885.80-435,214,328.70-192,782,894.60

Finding the Fourth Proportional to 290,142,885.80, 435,214,328.70 and 192,782,894.60

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Solution

The fourth proportional to 290,142,885.80, 435,214,328.70 and 192,782,894.60 is: 289,174,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,142,885.80 : 435,214,328.70 = 192,782,894.60 : x
  2. Step 2: Convert to fraction form
    290,142,885.80/435,214,328.70 = 192,782,894.60/x
  3. Step 3: Cross multiply
    290,142,885.80x = 435,214,328.70 × 192,782,894.60
  4. Step 4: Simplify right side
    290,142,885.80x = 83,901,878,058,181,856
  5. Step 5: Solve for x
    x = 83,901,878,058,181,856/290,142,885.80
  6. Step 6: Final answer
    x = 289,174,341.90

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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.