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Finding the Fourth Proportional to 453,309,940.80, 679,964,911.20 and 417,030,235.20

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Solution

The fourth proportional to 453,309,940.80, 679,964,911.20 and 417,030,235.20 is: 625,545,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,309,940.80 : 679,964,911.20 = 417,030,235.20 : x
  2. Step 2: Convert to fraction form
    453,309,940.80/679,964,911.20 = 417,030,235.20/x
  3. Step 3: Cross multiply
    453,309,940.80x = 679,964,911.20 × 417,030,235.20
  4. Step 4: Simplify right side
    453,309,940.80x = 283,565,926,845,483,136
  5. Step 5: Solve for x
    x = 283,565,926,845,483,136/453,309,940.80
  6. Step 6: Final answer
    x = 625,545,352.80

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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.