Home / 11,178,029.60-16,767,044.40-7,776,807.20

Finding the Fourth Proportional to 11,178,029.60, 16,767,044.40 and 7,776,807.20

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Solution

The fourth proportional to 11,178,029.60, 16,767,044.40 and 7,776,807.20 is: 11,665,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178,029.60 : 16,767,044.40 = 7,776,807.20 : x
  2. Step 2: Convert to fraction form
    11,178,029.60/16,767,044.40 = 7,776,807.20/x
  3. Step 3: Cross multiply
    11,178,029.60x = 16,767,044.40 × 7,776,807.20
  4. Step 4: Simplify right side
    11,178,029.60x = 130,394,071,612,639.69
  5. Step 5: Solve for x
    x = 130,394,071,612,639.69/11,178,029.60
  6. Step 6: Final answer
    x = 11,665,210.80

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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.