Home / 28,545,012.08-39,392,400.28-15,492,386.96

Finding the Fourth Proportional to 28,545,012.08, 39,392,400.28 and 15,492,386.96

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Solution

The fourth proportional to 28,545,012.08, 39,392,400.28 and 15,492,386.96 is: 21,379,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,012.08 : 39,392,400.28 = 15,492,386.96 : x
  2. Step 2: Convert to fraction form
    28,545,012.08/39,392,400.28 = 15,492,386.96/x
  3. Step 3: Cross multiply
    28,545,012.08x = 39,392,400.28 × 15,492,386.96
  4. Step 4: Simplify right side
    28,545,012.08x = 610,282,308,420,972.38
  5. Step 5: Solve for x
    x = 610,282,308,420,972.38/28,545,012.08
  6. Step 6: Final answer
    x = 21,379,647.93

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1.5x scale

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.