Home / 28,092,671.86-38,771,034.93-15,870,316.66

Finding the Fourth Proportional to 28,092,671.86, 38,771,034.93 and 15,870,316.66

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Solution

The fourth proportional to 28,092,671.86, 38,771,034.93 and 15,870,316.66 is: 21,902,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,671.86 : 38,771,034.93 = 15,870,316.66 : x
  2. Step 2: Convert to fraction form
    28,092,671.86/38,771,034.93 = 15,870,316.66/x
  3. Step 3: Cross multiply
    28,092,671.86x = 38,771,034.93 × 15,870,316.66
  4. Step 4: Simplify right side
    28,092,671.86x = 615,308,601,575,020.88
  5. Step 5: Solve for x
    x = 615,308,601,575,020.88/28,092,671.86
  6. Step 6: Final answer
    x = 21,902,815.25

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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.