Home / 12,900,577.06-17,802,798.95-7,099,358.78

Finding the Fourth Proportional to 12,900,577.06, 17,802,798.95 and 7,099,358.78

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Solution

The fourth proportional to 12,900,577.06, 17,802,798.95 and 7,099,358.78 is: 9,797,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,577.06 : 17,802,798.95 = 7,099,358.78 : x
  2. Step 2: Convert to fraction form
    12,900,577.06/17,802,798.95 = 7,099,358.78/x
  3. Step 3: Cross multiply
    12,900,577.06x = 17,802,798.95 × 7,099,358.78
  4. Step 4: Simplify right side
    12,900,577.06x = 126,388,456,909,746.50
  5. Step 5: Solve for x
    x = 126,388,456,909,746.50/12,900,577.06
  6. Step 6: Final answer
    x = 9,797,116.55

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1.5x scale

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.