Home / 12,984,254.72-17,918,798.40-7,182,936.32

Finding the Fourth Proportional to 12,984,254.72, 17,918,798.40 and 7,182,936.32

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Solution

The fourth proportional to 12,984,254.72, 17,918,798.40 and 7,182,936.32 is: 9,912,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,254.72 : 17,918,798.40 = 7,182,936.32 : x
  2. Step 2: Convert to fraction form
    12,984,254.72/17,918,798.40 = 7,182,936.32/x
  3. Step 3: Cross multiply
    12,984,254.72x = 17,918,798.40 × 7,182,936.32
  4. Step 4: Simplify right side
    12,984,254.72x = 128,709,587,838,117.88
  5. Step 5: Solve for x
    x = 128,709,587,838,117.88/12,984,254.72
  6. Step 6: Final answer
    x = 9,912,743.60

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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.