Home / 12,455,931.80-18,683,897.70-7,062,498.20

Finding the Fourth Proportional to 12,455,931.80, 18,683,897.70 and 7,062,498.20

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Solution

The fourth proportional to 12,455,931.80, 18,683,897.70 and 7,062,498.20 is: 10,593,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,931.80 : 18,683,897.70 = 7,062,498.20 : x
  2. Step 2: Convert to fraction form
    12,455,931.80/18,683,897.70 = 7,062,498.20/x
  3. Step 3: Cross multiply
    12,455,931.80x = 18,683,897.70 × 7,062,498.20
  4. Step 4: Simplify right side
    12,455,931.80x = 131,954,993,875,234.14
  5. Step 5: Solve for x
    x = 131,954,993,875,234.14/12,455,931.80
  6. Step 6: Final answer
    x = 10,593,747.30

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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.