Home / 28,085,390-38,757,981.48-15,695,690.24

Finding the Fourth Proportional to 28,085,390, 38,757,981.48 and 15,695,690.24

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Solution

The fourth proportional to 28,085,390, 38,757,981.48 and 15,695,690.24 is: 21,660,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,390 : 38,757,981.48 = 15,695,690.24 : x
  2. Step 2: Convert to fraction form
    28,085,390/38,757,981.48 = 15,695,690.24/x
  3. Step 3: Cross multiply
    28,085,390x = 38,757,981.48 × 15,695,690.24
  4. Step 4: Simplify right side
    28,085,390x = 608,333,271,637,736.75
  5. Step 5: Solve for x
    x = 608,333,271,637,736.75/28,085,390
  6. Step 6: Final answer
    x = 21,660,132.60

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Double scale
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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.