Home / 1,025,755,968.30-1,539,389,779.65-412,780,109.10

Finding the Fourth Proportional to 1,025,755,968.30, 1,539,389,779.65 and 412,780,109.10

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Solution

The fourth proportional to 1,025,755,968.30, 1,539,389,779.65 and 412,780,109.10 is: 619,474,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,755,968.30 : 1,539,389,779.65 = 412,780,109.10 : x
  2. Step 2: Convert to fraction form
    1,025,755,968.30/1,539,389,779.65 = 412,780,109.10/x
  3. Step 3: Cross multiply
    1,025,755,968.30x = 1,539,389,779.65 × 412,780,109.10
  4. Step 4: Simplify right side
    1,025,755,968.30x = 635,429,481,191,352,064
  5. Step 5: Solve for x
    x = 635,429,481,191,352,064/1,025,755,968.30
  6. Step 6: Final answer
    x = 619,474,320.24

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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.