Home / 12,988,415.54-17,909,345.58-9,714,738.98

Finding the Fourth Proportional to 12,988,415.54, 17,909,345.58 and 9,714,738.98

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Solution

The fourth proportional to 12,988,415.54, 17,909,345.58 and 9,714,738.98 is: 13,395,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988,415.54 : 17,909,345.58 = 9,714,738.98 : x
  2. Step 2: Convert to fraction form
    12,988,415.54/17,909,345.58 = 9,714,738.98/x
  3. Step 3: Cross multiply
    12,988,415.54x = 17,909,345.58 × 9,714,738.98
  4. Step 4: Simplify right side
    12,988,415.54x = 173,984,617,612,316.69
  5. Step 5: Solve for x
    x = 173,984,617,612,316.69/12,988,415.54
  6. Step 6: Final answer
    x = 13,395,368.90

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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.