Home / 30,559,918.50-42,178,678.29-17,515,921.50

Finding the Fourth Proportional to 30,559,918.50, 42,178,678.29 and 17,515,921.50

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Solution

The fourth proportional to 30,559,918.50, 42,178,678.29 and 17,515,921.50 is: 24,175,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559,918.50 : 42,178,678.29 = 17,515,921.50 : x
  2. Step 2: Convert to fraction form
    30,559,918.50/42,178,678.29 = 17,515,921.50/x
  3. Step 3: Cross multiply
    30,559,918.50x = 42,178,678.29 × 17,515,921.50
  4. Step 4: Simplify right side
    30,559,918.50x = 738,798,417,901,394.25
  5. Step 5: Solve for x
    x = 738,798,417,901,394.25/30,559,918.50
  6. Step 6: Final answer
    x = 24,175,405.37

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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.