Home / 18,762,006.30-28,143,009.45-12,790,038.30

Finding the Fourth Proportional to 18,762,006.30, 28,143,009.45 and 12,790,038.30

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Solution

The fourth proportional to 18,762,006.30, 28,143,009.45 and 12,790,038.30 is: 19,185,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762,006.30 : 28,143,009.45 = 12,790,038.30 : x
  2. Step 2: Convert to fraction form
    18,762,006.30/28,143,009.45 = 12,790,038.30/x
  3. Step 3: Cross multiply
    18,762,006.30x = 28,143,009.45 × 12,790,038.30
  4. Step 4: Simplify right side
    18,762,006.30x = 359,950,168,742,761.94
  5. Step 5: Solve for x
    x = 359,950,168,742,761.94/18,762,006.30
  6. Step 6: Final answer
    x = 19,185,057.45

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Similar ratio
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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.