Home / 20,205,364.60-30,308,046.90-12,127,461.40

Finding the Fourth Proportional to 20,205,364.60, 30,308,046.90 and 12,127,461.40

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Solution

The fourth proportional to 20,205,364.60, 30,308,046.90 and 12,127,461.40 is: 18,191,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205,364.60 : 30,308,046.90 = 12,127,461.40 : x
  2. Step 2: Convert to fraction form
    20,205,364.60/30,308,046.90 = 12,127,461.40/x
  3. Step 3: Cross multiply
    20,205,364.60x = 30,308,046.90 × 12,127,461.40
  4. Step 4: Simplify right side
    20,205,364.60x = 367,559,668,889,139.62
  5. Step 5: Solve for x
    x = 367,559,668,889,139.62/20,205,364.60
  6. Step 6: Final answer
    x = 18,191,192.10

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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.