Home / 28,169,549.80-42,254,324.70-11,121,447.40

Finding the Fourth Proportional to 28,169,549.80, 42,254,324.70 and 11,121,447.40

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Solution

The fourth proportional to 28,169,549.80, 42,254,324.70 and 11,121,447.40 is: 16,682,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,549.80 : 42,254,324.70 = 11,121,447.40 : x
  2. Step 2: Convert to fraction form
    28,169,549.80/42,254,324.70 = 11,121,447.40/x
  3. Step 3: Cross multiply
    28,169,549.80x = 42,254,324.70 × 11,121,447.40
  4. Step 4: Simplify right side
    28,169,549.80x = 469,929,249,573,570.81
  5. Step 5: Solve for x
    x = 469,929,249,573,570.81/28,169,549.80
  6. Step 6: Final answer
    x = 16,682,171.10

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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.