Home / 13,742,703.80-20,614,055.70-12,420,006.20

Finding the Fourth Proportional to 13,742,703.80, 20,614,055.70 and 12,420,006.20

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Solution

The fourth proportional to 13,742,703.80, 20,614,055.70 and 12,420,006.20 is: 18,630,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742,703.80 : 20,614,055.70 = 12,420,006.20 : x
  2. Step 2: Convert to fraction form
    13,742,703.80/20,614,055.70 = 12,420,006.20/x
  3. Step 3: Cross multiply
    13,742,703.80x = 20,614,055.70 × 12,420,006.20
  4. Step 4: Simplify right side
    13,742,703.80x = 256,026,699,601,145.31
  5. Step 5: Solve for x
    x = 256,026,699,601,145.31/13,742,703.80
  6. Step 6: Final answer
    x = 18,630,009.30

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1.5x scale

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.