Home / 14,820,538.78-20,451,903.43-8,205,421.47

Finding the Fourth Proportional to 14,820,538.78, 20,451,903.43 and 8,205,421.47

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Solution

The fourth proportional to 14,820,538.78, 20,451,903.43 and 8,205,421.47 is: 11,323,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820,538.78 : 20,451,903.43 = 8,205,421.47 : x
  2. Step 2: Convert to fraction form
    14,820,538.78/20,451,903.43 = 8,205,421.47/x
  3. Step 3: Cross multiply
    14,820,538.78x = 20,451,903.43 × 8,205,421.47
  4. Step 4: Simplify right side
    14,820,538.78x = 167,816,487,506,888.62
  5. Step 5: Solve for x
    x = 167,816,487,506,888.62/14,820,538.78
  6. Step 6: Final answer
    x = 11,323,237.97

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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.