Home / 19,946,720.60-29,921,636.10-8,587,539.80

Finding the Fourth Proportional to 19,946,720.60, 29,921,636.10 and 8,587,539.80

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Solution

The fourth proportional to 19,946,720.60, 29,921,636.10 and 8,587,539.80 is: 12,881,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946,720.60 : 29,921,636.10 = 8,587,539.80 : x
  2. Step 2: Convert to fraction form
    19,946,720.60/29,921,636.10 = 8,587,539.80/x
  3. Step 3: Cross multiply
    19,946,720.60x = 29,921,636.10 × 8,587,539.80
  4. Step 4: Simplify right side
    19,946,720.60x = 256,953,240,889,866.81
  5. Step 5: Solve for x
    x = 256,953,240,889,866.81/19,946,720.60
  6. Step 6: Final answer
    x = 12,881,979.25

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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.