Home / 21,300,601.10-31,950,901.65-18,669,968.15

Finding the Fourth Proportional to 21,300,601.10, 31,950,901.65 and 18,669,968.15

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Solution

The fourth proportional to 21,300,601.10, 31,950,901.65 and 18,669,968.15 is: 28,004,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300,601.10 : 31,950,901.65 = 18,669,968.15 : x
  2. Step 2: Convert to fraction form
    21,300,601.10/31,950,901.65 = 18,669,968.15/x
  3. Step 3: Cross multiply
    21,300,601.10x = 31,950,901.65 × 18,669,968.15
  4. Step 4: Simplify right side
    21,300,601.10x = 596,522,316,169,282.38
  5. Step 5: Solve for x
    x = 596,522,316,169,282.38/21,300,601.10
  6. Step 6: Final answer
    x = 28,004,952.23

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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.