Home / 15,484,155.36-21,366,923.88-8,608,218.72

Finding the Fourth Proportional to 15,484,155.36, 21,366,923.88 and 8,608,218.72

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Solution

The fourth proportional to 15,484,155.36, 21,366,923.88 and 8,608,218.72 is: 11,878,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484,155.36 : 21,366,923.88 = 8,608,218.72 : x
  2. Step 2: Convert to fraction form
    15,484,155.36/21,366,923.88 = 8,608,218.72/x
  3. Step 3: Cross multiply
    15,484,155.36x = 21,366,923.88 × 8,608,218.72
  4. Step 4: Simplify right side
    15,484,155.36x = 183,931,154,132,631.03
  5. Step 5: Solve for x
    x = 183,931,154,132,631.03/15,484,155.36
  6. Step 6: Final answer
    x = 11,878,668.86

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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.