Home / 18,338,632.65-25,307,919.75-10,078,987.70

Finding the Fourth Proportional to 18,338,632.65, 25,307,919.75 and 10,078,987.70

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Solution

The fourth proportional to 18,338,632.65, 25,307,919.75 and 10,078,987.70 is: 13,909,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338,632.65 : 25,307,919.75 = 10,078,987.70 : x
  2. Step 2: Convert to fraction form
    18,338,632.65/25,307,919.75 = 10,078,987.70/x
  3. Step 3: Cross multiply
    18,338,632.65x = 25,307,919.75 × 10,078,987.70
  4. Step 4: Simplify right side
    18,338,632.65x = 255,078,211,746,297.47
  5. Step 5: Solve for x
    x = 255,078,211,746,297.47/18,338,632.65
  6. Step 6: Final answer
    x = 13,909,336.46

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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.