Home / 20,078,812.40-30,181,204.20-19,700,898.80

Finding the Fourth Proportional to 20,078,812.40, 30,181,204.20 and 19,700,898.80

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Solution

The fourth proportional to 20,078,812.40, 30,181,204.20 and 19,700,898.80 is: 29,613,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078,812.40 : 30,181,204.20 = 19,700,898.80 : x
  2. Step 2: Convert to fraction form
    20,078,812.40/30,181,204.20 = 19,700,898.80/x
  3. Step 3: Cross multiply
    20,078,812.40x = 30,181,204.20 × 19,700,898.80
  4. Step 4: Simplify right side
    20,078,812.40x = 594,596,849,606,335
  5. Step 5: Solve for x
    x = 594,596,849,606,335/20,078,812.40
  6. Step 6: Final answer
    x = 29,613,148.32

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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.