Home / 778,045,295.76-1,073,699,298.17-420,813,471.32

Finding the Fourth Proportional to 778,045,295.76, 1,073,699,298.17 and 420,813,471.32

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Solution

The fourth proportional to 778,045,295.76, 1,073,699,298.17 and 420,813,471.32 is: 580,720,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,045,295.76 : 1,073,699,298.17 = 420,813,471.32 : x
  2. Step 2: Convert to fraction form
    778,045,295.76/1,073,699,298.17 = 420,813,471.32/x
  3. Step 3: Cross multiply
    778,045,295.76x = 1,073,699,298.17 × 420,813,471.32
  4. Step 4: Simplify right side
    778,045,295.76x = 451,827,128,817,264,128
  5. Step 5: Solve for x
    x = 451,827,128,817,264,128/778,045,295.76
  6. Step 6: Final answer
    x = 580,720,854.28

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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.