Home / 778,045,294.51-1,073,699,296.45-420,813,470.07

Finding the Fourth Proportional to 778,045,294.51, 1,073,699,296.45 and 420,813,470.07

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Solution

The fourth proportional to 778,045,294.51, 1,073,699,296.45 and 420,813,470.07 is: 580,720,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,045,294.51 : 1,073,699,296.45 = 420,813,470.07 : x
  2. Step 2: Convert to fraction form
    778,045,294.51/1,073,699,296.45 = 420,813,470.07/x
  3. Step 3: Cross multiply
    778,045,294.51x = 1,073,699,296.45 × 420,813,470.07
  4. Step 4: Simplify right side
    778,045,294.51x = 451,827,126,750,842,176
  5. Step 5: Solve for x
    x = 451,827,126,750,842,176/778,045,294.51
  6. Step 6: Final answer
    x = 580,720,852.55

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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.