Home / 15,784,056.83-21,783,836.12-13,130,216.22

Finding the Fourth Proportional to 15,784,056.83, 21,783,836.12 and 13,130,216.22

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Solution

The fourth proportional to 15,784,056.83, 21,783,836.12 and 13,130,216.22 is: 18,121,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,056.83 : 21,783,836.12 = 13,130,216.22 : x
  2. Step 2: Convert to fraction form
    15,784,056.83/21,783,836.12 = 13,130,216.22/x
  3. Step 3: Cross multiply
    15,784,056.83x = 21,783,836.12 × 13,130,216.22
  4. Step 4: Simplify right side
    15,784,056.83x = 286,026,478,290,994.75
  5. Step 5: Solve for x
    x = 286,026,478,290,994.75/15,784,056.83
  6. Step 6: Final answer
    x = 18,121,227.10

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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.