Home / 778,045,425.61-1,073,699,477.36-420,813,600.97

Finding the Fourth Proportional to 778,045,425.61, 1,073,699,477.36 and 420,813,600.97

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Solution

The fourth proportional to 778,045,425.61, 1,073,699,477.36 and 420,813,600.97 is: 580,721,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,045,425.61 : 1,073,699,477.36 = 420,813,600.97 : x
  2. Step 2: Convert to fraction form
    778,045,425.61/1,073,699,477.36 = 420,813,600.97/x
  3. Step 3: Cross multiply
    778,045,425.61x = 1,073,699,477.36 × 420,813,600.97
  4. Step 4: Simplify right side
    778,045,425.61x = 451,827,343,425,364,544
  5. Step 5: Solve for x
    x = 451,827,343,425,364,544/778,045,425.61
  6. Step 6: Final answer
    x = 580,721,033.19

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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.