Home / 20,806,702.40-31,210,053.60-7,344,891.20

Finding the Fourth Proportional to 20,806,702.40, 31,210,053.60 and 7,344,891.20

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Solution

The fourth proportional to 20,806,702.40, 31,210,053.60 and 7,344,891.20 is: 11,017,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,702.40 : 31,210,053.60 = 7,344,891.20 : x
  2. Step 2: Convert to fraction form
    20,806,702.40/31,210,053.60 = 7,344,891.20/x
  3. Step 3: Cross multiply
    20,806,702.40x = 31,210,053.60 × 7,344,891.20
  4. Step 4: Simplify right side
    20,806,702.40x = 229,234,448,038,168.34
  5. Step 5: Solve for x
    x = 229,234,448,038,168.34/20,806,702.40
  6. Step 6: Final answer
    x = 11,017,336.80

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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.