Home / 268,515,219.04-402,988,062.56-139,159,811.36

Finding the Fourth Proportional to 268,515,219.04, 402,988,062.56 and 139,159,811.36

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Solution

The fourth proportional to 268,515,219.04, 402,988,062.56 and 139,159,811.36 is: 208,851,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,515,219.04 : 402,988,062.56 = 139,159,811.36 : x
  2. Step 2: Convert to fraction form
    268,515,219.04/402,988,062.56 = 139,159,811.36/x
  3. Step 3: Cross multiply
    268,515,219.04x = 402,988,062.56 × 139,159,811.36
  4. Step 4: Simplify right side
    268,515,219.04x = 56,079,742,766,181,488
  5. Step 5: Solve for x
    x = 56,079,742,766,181,488/268,515,219.04
  6. Step 6: Final answer
    x = 208,851,263.50

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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.