Home / 13,286,904.48-18,335,928-7,175,332.80

Finding the Fourth Proportional to 13,286,904.48, 18,335,928 and 7,175,332.80

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Solution

The fourth proportional to 13,286,904.48, 18,335,928 and 7,175,332.80 is: 9,901,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,904.48 : 18,335,928 = 7,175,332.80 : x
  2. Step 2: Convert to fraction form
    13,286,904.48/18,335,928 = 7,175,332.80/x
  3. Step 3: Cross multiply
    13,286,904.48x = 18,335,928 × 7,175,332.80
  4. Step 4: Simplify right side
    13,286,904.48x = 131,566,385,596,838.39
  5. Step 5: Solve for x
    x = 131,566,385,596,838.39/13,286,904.48
  6. Step 6: Final answer
    x = 9,901,959.17

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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.