Home / 10,628,681.80-15,943,022.70-9,620,912.20

Finding the Fourth Proportional to 10,628,681.80, 15,943,022.70 and 9,620,912.20

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Solution

The fourth proportional to 10,628,681.80, 15,943,022.70 and 9,620,912.20 is: 14,431,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628,681.80 : 15,943,022.70 = 9,620,912.20 : x
  2. Step 2: Convert to fraction form
    10,628,681.80/15,943,022.70 = 9,620,912.20/x
  3. Step 3: Cross multiply
    10,628,681.80x = 15,943,022.70 × 9,620,912.20
  4. Step 4: Simplify right side
    10,628,681.80x = 153,386,421,599,306.91
  5. Step 5: Solve for x
    x = 153,386,421,599,306.91/10,628,681.80
  6. Step 6: Final answer
    x = 14,431,368.30

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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.