Home / 419,977,535.10-629,966,302.65-393,103,679.10

Finding the Fourth Proportional to 419,977,535.10, 629,966,302.65 and 393,103,679.10

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Solution

The fourth proportional to 419,977,535.10, 629,966,302.65 and 393,103,679.10 is: 589,655,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,977,535.10 : 629,966,302.65 = 393,103,679.10 : x
  2. Step 2: Convert to fraction form
    419,977,535.10/629,966,302.65 = 393,103,679.10/x
  3. Step 3: Cross multiply
    419,977,535.10x = 629,966,302.65 × 393,103,679.10
  4. Step 4: Simplify right side
    419,977,535.10x = 247,642,071,280,739,072
  5. Step 5: Solve for x
    x = 247,642,071,280,739,072/419,977,535.10
  6. Step 6: Final answer
    x = 589,655,518.65

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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.