Home / 12,776,079.60-19,169,562.60-6,715,465.20

Finding the Fourth Proportional to 12,776,079.60, 19,169,562.60 and 6,715,465.20

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Solution

The fourth proportional to 12,776,079.60, 19,169,562.60 and 6,715,465.20 is: 10,076,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,079.60 : 19,169,562.60 = 6,715,465.20 : x
  2. Step 2: Convert to fraction form
    12,776,079.60/19,169,562.60 = 6,715,465.20/x
  3. Step 3: Cross multiply
    12,776,079.60x = 19,169,562.60 × 6,715,465.20
  4. Step 4: Simplify right side
    12,776,079.60x = 128,732,530,539,521.53
  5. Step 5: Solve for x
    x = 128,732,530,539,521.53/12,776,079.60
  6. Step 6: Final answer
    x = 10,076,058.90

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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.