Home / 12,946,655.58-17,866,296.72-7,145,437.20

Finding the Fourth Proportional to 12,946,655.58, 17,866,296.72 and 7,145,437.20

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Solution

The fourth proportional to 12,946,655.58, 17,866,296.72 and 7,145,437.20 is: 9,860,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,655.58 : 17,866,296.72 = 7,145,437.20 : x
  2. Step 2: Convert to fraction form
    12,946,655.58/17,866,296.72 = 7,145,437.20/x
  3. Step 3: Cross multiply
    12,946,655.58x = 17,866,296.72 × 7,145,437.20
  4. Step 4: Simplify right side
    12,946,655.58x = 127,662,501,209,325.98
  5. Step 5: Solve for x
    x = 127,662,501,209,325.98/12,946,655.58
  6. Step 6: Final answer
    x = 9,860,654.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.