Home / 13,742,706.80-20,614,060.20-12,420,009.20

Finding the Fourth Proportional to 13,742,706.80, 20,614,060.20 and 12,420,009.20

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Solution

The fourth proportional to 13,742,706.80, 20,614,060.20 and 12,420,009.20 is: 18,630,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742,706.80 : 20,614,060.20 = 12,420,009.20 : x
  2. Step 2: Convert to fraction form
    13,742,706.80/20,614,060.20 = 12,420,009.20/x
  3. Step 3: Cross multiply
    13,742,706.80x = 20,614,060.20 × 12,420,009.20
  4. Step 4: Simplify right side
    13,742,706.80x = 256,026,817,333,353.81
  5. Step 5: Solve for x
    x = 256,026,817,333,353.81/13,742,706.80
  6. Step 6: Final answer
    x = 18,630,013.80

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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.