Home / 20,139,602.70-30,209,404.05-6,676,430.70

Finding the Fourth Proportional to 20,139,602.70, 30,209,404.05 and 6,676,430.70

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Solution

The fourth proportional to 20,139,602.70, 30,209,404.05 and 6,676,430.70 is: 10,014,646.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,602.70 : 30,209,404.05 = 6,676,430.70 : x
  2. Step 2: Convert to fraction form
    20,139,602.70/30,209,404.05 = 6,676,430.70/x
  3. Step 3: Cross multiply
    20,139,602.70x = 30,209,404.05 × 6,676,430.70
  4. Step 4: Simplify right side
    20,139,602.70x = 201,690,992,628,124.34
  5. Step 5: Solve for x
    x = 201,690,992,628,124.34/20,139,602.70
  6. Step 6: Final answer
    x = 10,014,646.05

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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.