Home / 12,635,710.83-17,435,806.47-7,129,172.88

Finding the Fourth Proportional to 12,635,710.83, 17,435,806.47 and 7,129,172.88

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Solution

The fourth proportional to 12,635,710.83, 17,435,806.47 and 7,129,172.88 is: 9,837,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635,710.83 : 17,435,806.47 = 7,129,172.88 : x
  2. Step 2: Convert to fraction form
    12,635,710.83/17,435,806.47 = 7,129,172.88/x
  3. Step 3: Cross multiply
    12,635,710.83x = 17,435,806.47 × 7,129,172.88
  4. Step 4: Simplify right side
    12,635,710.83x = 124,302,878,626,852.52
  5. Step 5: Solve for x
    x = 124,302,878,626,852.52/12,635,710.83
  6. Step 6: Final answer
    x = 9,837,426.66

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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.