Home / 20,346,593.72-28,071,355.02-12,608,812.76

Finding the Fourth Proportional to 20,346,593.72, 28,071,355.02 and 12,608,812.76

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Solution

The fourth proportional to 20,346,593.72, 28,071,355.02 and 12,608,812.76 is: 17,395,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,593.72 : 28,071,355.02 = 12,608,812.76 : x
  2. Step 2: Convert to fraction form
    20,346,593.72/28,071,355.02 = 12,608,812.76/x
  3. Step 3: Cross multiply
    20,346,593.72x = 28,071,355.02 × 12,608,812.76
  4. Step 4: Simplify right side
    20,346,593.72x = 353,946,459,366,666.06
  5. Step 5: Solve for x
    x = 353,946,459,366,666.06/20,346,593.72
  6. Step 6: Final answer
    x = 17,395,858.21

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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.