Home / 147,634,999.20-221,452,498.80-139,131,943.20

Finding the Fourth Proportional to 147,634,999.20, 221,452,498.80 and 139,131,943.20

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Solution

The fourth proportional to 147,634,999.20, 221,452,498.80 and 139,131,943.20 is: 208,697,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,634,999.20 : 221,452,498.80 = 139,131,943.20 : x
  2. Step 2: Convert to fraction form
    147,634,999.20/221,452,498.80 = 139,131,943.20/x
  3. Step 3: Cross multiply
    147,634,999.20x = 221,452,498.80 × 139,131,943.20
  4. Step 4: Simplify right side
    147,634,999.20x = 30,811,116,484,539,668
  5. Step 5: Solve for x
    x = 30,811,116,484,539,668/147,634,999.20
  6. Step 6: Final answer
    x = 208,697,914.80

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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.