Home / 21,570,890.25-29,748,113.61-16,861,907.87

Finding the Fourth Proportional to 21,570,890.25, 29,748,113.61 and 16,861,907.87

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Solution

The fourth proportional to 21,570,890.25, 29,748,113.61 and 16,861,907.87 is: 23,254,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570,890.25 : 29,748,113.61 = 16,861,907.87 : x
  2. Step 2: Convert to fraction form
    21,570,890.25/29,748,113.61 = 16,861,907.87/x
  3. Step 3: Cross multiply
    21,570,890.25x = 29,748,113.61 × 16,861,907.87
  4. Step 4: Simplify right side
    21,570,890.25x = 501,609,950,849,372.50
  5. Step 5: Solve for x
    x = 501,609,950,849,372.50/21,570,890.25
  6. Step 6: Final answer
    x = 23,254,021.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.