Home / 18,725,827.20-28,088,740.80-13,052,457.60

Finding the Fourth Proportional to 18,725,827.20, 28,088,740.80 and 13,052,457.60

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Solution

The fourth proportional to 18,725,827.20, 28,088,740.80 and 13,052,457.60 is: 19,578,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,827.20 : 28,088,740.80 = 13,052,457.60 : x
  2. Step 2: Convert to fraction form
    18,725,827.20/28,088,740.80 = 13,052,457.60/x
  3. Step 3: Cross multiply
    18,725,827.20x = 28,088,740.80 × 13,052,457.60
  4. Step 4: Simplify right side
    18,725,827.20x = 366,627,098,329,390.06
  5. Step 5: Solve for x
    x = 366,627,098,329,390.06/18,725,827.20
  6. Step 6: Final answer
    x = 19,578,686.40

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1.5x scale

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.