Home / 18,725,699.48-28,063,887-7,929,641.62

Finding the Fourth Proportional to 18,725,699.48, 28,063,887 and 7,929,641.62

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Solution

The fourth proportional to 18,725,699.48, 28,063,887 and 7,929,641.62 is: 11,884,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,699.48 : 28,063,887 = 7,929,641.62 : x
  2. Step 2: Convert to fraction form
    18,725,699.48/28,063,887 = 7,929,641.62/x
  3. Step 3: Cross multiply
    18,725,699.48x = 28,063,887 × 7,929,641.62
  4. Step 4: Simplify right side
    18,725,699.48x = 222,536,566,374,176.94
  5. Step 5: Solve for x
    x = 222,536,566,374,176.94/18,725,699.48
  6. Step 6: Final answer
    x = 11,884,018.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.