Home / 20,500,653.69-28,291,492.53-11,333,886.93

Finding the Fourth Proportional to 20,500,653.69, 28,291,492.53 and 11,333,886.93

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Solution

The fourth proportional to 20,500,653.69, 28,291,492.53 and 11,333,886.93 is: 15,641,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,653.69 : 28,291,492.53 = 11,333,886.93 : x
  2. Step 2: Convert to fraction form
    20,500,653.69/28,291,492.53 = 11,333,886.93/x
  3. Step 3: Cross multiply
    20,500,653.69x = 28,291,492.53 × 11,333,886.93
  4. Step 4: Simplify right side
    20,500,653.69x = 320,652,577,415,959.62
  5. Step 5: Solve for x
    x = 320,652,577,415,959.62/20,500,653.69
  6. Step 6: Final answer
    x = 15,641,090.39

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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.