Home / 106,538,644.40-159,807,966.60-72,101,267.60

Finding the Fourth Proportional to 106,538,644.40, 159,807,966.60 and 72,101,267.60

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Solution

The fourth proportional to 106,538,644.40, 159,807,966.60 and 72,101,267.60 is: 108,151,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,538,644.40 : 159,807,966.60 = 72,101,267.60 : x
  2. Step 2: Convert to fraction form
    106,538,644.40/159,807,966.60 = 72,101,267.60/x
  3. Step 3: Cross multiply
    106,538,644.40x = 159,807,966.60 × 72,101,267.60
  4. Step 4: Simplify right side
    106,538,644.40x = 11,522,356,964,438,460
  5. Step 5: Solve for x
    x = 11,522,356,964,438,460/106,538,644.40
  6. Step 6: Final answer
    x = 108,151,901.40

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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.