Home / 15,559,403.21-21,452,015.45-12,758,206.13

Finding the Fourth Proportional to 15,559,403.21, 21,452,015.45 and 12,758,206.13

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Solution

The fourth proportional to 15,559,403.21, 21,452,015.45 and 12,758,206.13 is: 17,589,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559,403.21 : 21,452,015.45 = 12,758,206.13 : x
  2. Step 2: Convert to fraction form
    15,559,403.21/21,452,015.45 = 12,758,206.13/x
  3. Step 3: Cross multiply
    15,559,403.21x = 21,452,015.45 × 12,758,206.13
  4. Step 4: Simplify right side
    15,559,403.21x = 273,689,234,939,680.16
  5. Step 5: Solve for x
    x = 273,689,234,939,680.16/15,559,403.21
  6. Step 6: Final answer
    x = 17,589,957.10

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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.