Home / 12,928,618.64-17,841,615.64-7,127,607.96

Finding the Fourth Proportional to 12,928,618.64, 17,841,615.64 and 7,127,607.96

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Solution

The fourth proportional to 12,928,618.64, 17,841,615.64 and 7,127,607.96 is: 9,836,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,618.64 : 17,841,615.64 = 7,127,607.96 : x
  2. Step 2: Convert to fraction form
    12,928,618.64/17,841,615.64 = 7,127,607.96/x
  3. Step 3: Cross multiply
    12,928,618.64x = 17,841,615.64 × 7,127,607.96
  4. Step 4: Simplify right side
    12,928,618.64x = 127,168,041,637,105.47
  5. Step 5: Solve for x
    x = 127,168,041,637,105.47/12,928,618.64
  6. Step 6: Final answer
    x = 9,836,166.19

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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.