Home / 12,176,681.65-16,797,449.91-7,528,981

Finding the Fourth Proportional to 12,176,681.65, 16,797,449.91 and 7,528,981

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Solution

The fourth proportional to 12,176,681.65, 16,797,449.91 and 7,528,981 is: 10,386,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176,681.65 : 16,797,449.91 = 7,528,981 : x
  2. Step 2: Convert to fraction form
    12,176,681.65/16,797,449.91 = 7,528,981/x
  3. Step 3: Cross multiply
    12,176,681.65x = 16,797,449.91 × 7,528,981
  4. Step 4: Simplify right side
    12,176,681.65x = 126,467,681,220,841.72
  5. Step 5: Solve for x
    x = 126,467,681,220,841.72/12,176,681.65
  6. Step 6: Final answer
    x = 10,386,054.66

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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.