Home / 28,525,405.48-39,364,828.42-15,472,631.72

Finding the Fourth Proportional to 28,525,405.48, 39,364,828.42 and 15,472,631.72

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Solution

The fourth proportional to 28,525,405.48, 39,364,828.42 and 15,472,631.72 is: 21,352,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525,405.48 : 39,364,828.42 = 15,472,631.72 : x
  2. Step 2: Convert to fraction form
    28,525,405.48/39,364,828.42 = 15,472,631.72/x
  3. Step 3: Cross multiply
    28,525,405.48x = 39,364,828.42 × 15,472,631.72
  4. Step 4: Simplify right side
    28,525,405.48x = 609,077,492,863,649.50
  5. Step 5: Solve for x
    x = 609,077,492,863,649.50/28,525,405.48
  6. Step 6: Final answer
    x = 21,352,106.40

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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.