Home / 15,678,071.64-21,635,007.66-8,709,201.24

Finding the Fourth Proportional to 15,678,071.64, 21,635,007.66 and 8,709,201.24

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Solution

The fourth proportional to 15,678,071.64, 21,635,007.66 and 8,709,201.24 is: 12,018,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,071.64 : 21,635,007.66 = 8,709,201.24 : x
  2. Step 2: Convert to fraction form
    15,678,071.64/21,635,007.66 = 8,709,201.24/x
  3. Step 3: Cross multiply
    15,678,071.64x = 21,635,007.66 × 8,709,201.24
  4. Step 4: Simplify right side
    15,678,071.64x = 188,423,635,539,881.50
  5. Step 5: Solve for x
    x = 188,423,635,539,881.50/15,678,071.64
  6. Step 6: Final answer
    x = 12,018,291.53

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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.