Home / 45,428,946.30-68,143,419.45-21,159,807.30

Finding the Fourth Proportional to 45,428,946.30, 68,143,419.45 and 21,159,807.30

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Solution

The fourth proportional to 45,428,946.30, 68,143,419.45 and 21,159,807.30 is: 31,739,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428,946.30 : 68,143,419.45 = 21,159,807.30 : x
  2. Step 2: Convert to fraction form
    45,428,946.30/68,143,419.45 = 21,159,807.30/x
  3. Step 3: Cross multiply
    45,428,946.30x = 68,143,419.45 × 21,159,807.30
  4. Step 4: Simplify right side
    45,428,946.30x = 1,441,901,624,325,072
  5. Step 5: Solve for x
    x = 1,441,901,624,325,072/45,428,946.30
  6. Step 6: Final answer
    x = 31,739,710.95

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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.