Home / 42,362,941.79-63,515,403.12-21,573,136.89

Finding the Fourth Proportional to 42,362,941.79, 63,515,403.12 and 21,573,136.89

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Solution

The fourth proportional to 42,362,941.79, 63,515,403.12 and 21,573,136.89 is: 32,344,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,362,941.79 : 63,515,403.12 = 21,573,136.89 : x
  2. Step 2: Convert to fraction form
    42,362,941.79/63,515,403.12 = 21,573,136.89/x
  3. Step 3: Cross multiply
    42,362,941.79x = 63,515,403.12 × 21,573,136.89
  4. Step 4: Simplify right side
    42,362,941.79x = 1,370,226,486,212,192.50
  5. Step 5: Solve for x
    x = 1,370,226,486,212,192.50/42,362,941.79
  6. Step 6: Final answer
    x = 32,344,932.34

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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.