Home / 42,170,435.20-63,213,662.40-19,411,638.40

Finding the Fourth Proportional to 42,170,435.20, 63,213,662.40 and 19,411,638.40

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Solution

The fourth proportional to 42,170,435.20, 63,213,662.40 and 19,411,638.40 is: 29,098,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170,435.20 : 63,213,662.40 = 19,411,638.40 : x
  2. Step 2: Convert to fraction form
    42,170,435.20/63,213,662.40 = 19,411,638.40/x
  3. Step 3: Cross multiply
    42,170,435.20x = 63,213,662.40 × 19,411,638.40
  4. Step 4: Simplify right side
    42,170,435.20x = 1,227,080,756,448,476
  5. Step 5: Solve for x
    x = 1,227,080,756,448,476/42,170,435.20
  6. Step 6: Final answer
    x = 29,098,128.83

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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.