Home / 260,828,400.80-391,242,601.20-139,896,048.80

Finding the Fourth Proportional to 260,828,400.80, 391,242,601.20 and 139,896,048.80

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Solution

The fourth proportional to 260,828,400.80, 391,242,601.20 and 139,896,048.80 is: 209,844,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,828,400.80 : 391,242,601.20 = 139,896,048.80 : x
  2. Step 2: Convert to fraction form
    260,828,400.80/391,242,601.20 = 139,896,048.80/x
  3. Step 3: Cross multiply
    260,828,400.80x = 391,242,601.20 × 139,896,048.80
  4. Step 4: Simplify right side
    260,828,400.80x = 54,733,294,030,114,144
  5. Step 5: Solve for x
    x = 54,733,294,030,114,144/260,828,400.80
  6. Step 6: Final answer
    x = 209,844,073.20

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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.