Home / 19,920,612.60-29,880,918.90-18,220,001.40

Finding the Fourth Proportional to 19,920,612.60, 29,880,918.90 and 18,220,001.40

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Solution

The fourth proportional to 19,920,612.60, 29,880,918.90 and 18,220,001.40 is: 27,330,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,612.60 : 29,880,918.90 = 18,220,001.40 : x
  2. Step 2: Convert to fraction form
    19,920,612.60/29,880,918.90 = 18,220,001.40/x
  3. Step 3: Cross multiply
    19,920,612.60x = 29,880,918.90 × 18,220,001.40
  4. Step 4: Simplify right side
    19,920,612.60x = 544,430,384,191,286.38
  5. Step 5: Solve for x
    x = 544,430,384,191,286.38/19,920,612.60
  6. Step 6: Final answer
    x = 27,330,002.10

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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.