Home / 10,579,629.60-15,869,444.40-7,178,407.20

Finding the Fourth Proportional to 10,579,629.60, 15,869,444.40 and 7,178,407.20

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Solution

The fourth proportional to 10,579,629.60, 15,869,444.40 and 7,178,407.20 is: 10,767,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579,629.60 : 15,869,444.40 = 7,178,407.20 : x
  2. Step 2: Convert to fraction form
    10,579,629.60/15,869,444.40 = 7,178,407.20/x
  3. Step 3: Cross multiply
    10,579,629.60x = 15,869,444.40 × 7,178,407.20
  4. Step 4: Simplify right side
    10,579,629.60x = 113,917,333,940,959.69
  5. Step 5: Solve for x
    x = 113,917,333,940,959.69/10,579,629.60
  6. Step 6: Final answer
    x = 10,767,610.80

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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.