Home / 28,560,078.32-39,411,802.64-15,507,038.48

Finding the Fourth Proportional to 28,560,078.32, 39,411,802.64 and 15,507,038.48

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Solution

The fourth proportional to 28,560,078.32, 39,411,802.64 and 15,507,038.48 is: 21,399,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560,078.32 : 39,411,802.64 = 15,507,038.48 : x
  2. Step 2: Convert to fraction form
    28,560,078.32/39,411,802.64 = 15,507,038.48/x
  3. Step 3: Cross multiply
    28,560,078.32x = 39,411,802.64 × 15,507,038.48
  4. Step 4: Simplify right side
    28,560,078.32x = 611,160,340,104,645.62
  5. Step 5: Solve for x
    x = 611,160,340,104,645.62/28,560,078.32
  6. Step 6: Final answer
    x = 21,399,112.89

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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.