Home / 30,830,988.76-42,543,663.69-17,077,383.16

Finding the Fourth Proportional to 30,830,988.76, 42,543,663.69 and 17,077,383.16

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Solution

The fourth proportional to 30,830,988.76, 42,543,663.69 and 17,077,383.16 is: 23,565,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830,988.76 : 42,543,663.69 = 17,077,383.16 : x
  2. Step 2: Convert to fraction form
    30,830,988.76/42,543,663.69 = 17,077,383.16/x
  3. Step 3: Cross multiply
    30,830,988.76x = 42,543,663.69 × 17,077,383.16
  4. Step 4: Simplify right side
    30,830,988.76x = 726,534,445,864,309.38
  5. Step 5: Solve for x
    x = 726,534,445,864,309.38/30,830,988.76
  6. Step 6: Final answer
    x = 23,565,071.22

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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.