Home / 14,021,574.72-19,349,961.12-7,909,984.32

Finding the Fourth Proportional to 14,021,574.72, 19,349,961.12 and 7,909,984.32

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Solution

The fourth proportional to 14,021,574.72, 19,349,961.12 and 7,909,984.32 is: 10,915,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021,574.72 : 19,349,961.12 = 7,909,984.32 : x
  2. Step 2: Convert to fraction form
    14,021,574.72/19,349,961.12 = 7,909,984.32/x
  3. Step 3: Cross multiply
    14,021,574.72x = 19,349,961.12 × 7,909,984.32
  4. Step 4: Simplify right side
    14,021,574.72x = 153,057,889,051,809.66
  5. Step 5: Solve for x
    x = 153,057,889,051,809.66/14,021,574.72
  6. Step 6: Final answer
    x = 10,915,884.42

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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.