Home / 208,174,682.40-312,262,023.60-100,679,258.40

Finding the Fourth Proportional to 208,174,682.40, 312,262,023.60 and 100,679,258.40

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Solution

The fourth proportional to 208,174,682.40, 312,262,023.60 and 100,679,258.40 is: 151,018,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,174,682.40 : 312,262,023.60 = 100,679,258.40 : x
  2. Step 2: Convert to fraction form
    208,174,682.40/312,262,023.60 = 100,679,258.40/x
  3. Step 3: Cross multiply
    208,174,682.40x = 312,262,023.60 × 100,679,258.40
  4. Step 4: Simplify right side
    208,174,682.40x = 31,438,308,962,531,304
  5. Step 5: Solve for x
    x = 31,438,308,962,531,304/208,174,682.40
  6. Step 6: Final answer
    x = 151,018,887.60

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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.