Home / 781,854,136.82-1,078,979,779.03-460,004,570.07

Finding the Fourth Proportional to 781,854,136.82, 1,078,979,779.03 and 460,004,570.07

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Solution

The fourth proportional to 781,854,136.82, 1,078,979,779.03 and 460,004,570.07 is: 634,818,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,854,136.82 : 1,078,979,779.03 = 460,004,570.07 : x
  2. Step 2: Convert to fraction form
    781,854,136.82/1,078,979,779.03 = 460,004,570.07/x
  3. Step 3: Cross multiply
    781,854,136.82x = 1,078,979,779.03 × 460,004,570.07
  4. Step 4: Simplify right side
    781,854,136.82x = 496,335,629,359,223,872
  5. Step 5: Solve for x
    x = 496,335,629,359,223,872/781,854,136.82
  6. Step 6: Final answer
    x = 634,818,703.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.