Home / 20,806,847.40-31,210,271.10-7,345,036.20

Finding the Fourth Proportional to 20,806,847.40, 31,210,271.10 and 7,345,036.20

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Solution

The fourth proportional to 20,806,847.40, 31,210,271.10 and 7,345,036.20 is: 11,017,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,847.40 : 31,210,271.10 = 7,345,036.20 : x
  2. Step 2: Convert to fraction form
    20,806,847.40/31,210,271.10 = 7,345,036.20/x
  3. Step 3: Cross multiply
    20,806,847.40x = 31,210,271.10 × 7,345,036.20
  4. Step 4: Simplify right side
    20,806,847.40x = 229,240,571,041,313.84
  5. Step 5: Solve for x
    x = 229,240,571,041,313.84/20,806,847.40
  6. Step 6: Final answer
    x = 11,017,554.30

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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.