Home / 12,867,188.85-19,304,518.77-5,186,870.10

Finding the Fourth Proportional to 12,867,188.85, 19,304,518.77 and 5,186,870.10

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Solution

The fourth proportional to 12,867,188.85, 19,304,518.77 and 5,186,870.10 is: 7,781,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,188.85 : 19,304,518.77 = 5,186,870.10 : x
  2. Step 2: Convert to fraction form
    12,867,188.85/19,304,518.77 = 5,186,870.10/x
  3. Step 3: Cross multiply
    12,867,188.85x = 19,304,518.77 × 5,186,870.10
  4. Step 4: Simplify right side
    12,867,188.85x = 100,130,031,203,001.77
  5. Step 5: Solve for x
    x = 100,130,031,203,001.77/12,867,188.85
  6. Step 6: Final answer
    x = 7,781,810.96

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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.