Home / 30,411,009-45,616,666.50-7,691,928.12

Finding the Fourth Proportional to 30,411,009, 45,616,666.50 and 7,691,928.12

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Solution

The fourth proportional to 30,411,009, 45,616,666.50 and 7,691,928.12 is: 11,537,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411,009 : 45,616,666.50 = 7,691,928.12 : x
  2. Step 2: Convert to fraction form
    30,411,009/45,616,666.50 = 7,691,928.12/x
  3. Step 3: Cross multiply
    30,411,009x = 45,616,666.50 × 7,691,928.12
  4. Step 4: Simplify right side
    30,411,009x = 350,880,119,792,012
  5. Step 5: Solve for x
    x = 350,880,119,792,012/30,411,009
  6. Step 6: Final answer
    x = 11,537,930.88

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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.