Home / 208,729,325.05-288,046,984.92-115,909,830.16

Finding the Fourth Proportional to 208,729,325.05, 288,046,984.92 and 115,909,830.16

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Solution

The fourth proportional to 208,729,325.05, 288,046,984.92 and 115,909,830.16 is: 159,955,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,729,325.05 : 288,046,984.92 = 115,909,830.16 : x
  2. Step 2: Convert to fraction form
    208,729,325.05/288,046,984.92 = 115,909,830.16/x
  3. Step 3: Cross multiply
    208,729,325.05x = 288,046,984.92 × 115,909,830.16
  4. Step 4: Simplify right side
    208,729,325.05x = 33,387,477,099,022,500
  5. Step 5: Solve for x
    x = 33,387,477,099,022,500/208,729,325.05
  6. Step 6: Final answer
    x = 159,955,852.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.