Home / 680,367,840.74-1,020,947,850.77-286,869,991.76

Finding the Fourth Proportional to 680,367,840.74, 1,020,947,850.77 and 286,869,991.76

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Solution

The fourth proportional to 680,367,840.74, 1,020,947,850.77 and 286,869,991.76 is: 430,471,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,367,840.74 : 1,020,947,850.77 = 286,869,991.76 : x
  2. Step 2: Convert to fraction form
    680,367,840.74/1,020,947,850.77 = 286,869,991.76/x
  3. Step 3: Cross multiply
    680,367,840.74x = 1,020,947,850.77 × 286,869,991.76
  4. Step 4: Simplify right side
    680,367,840.74x = 292,879,301,531,240,512
  5. Step 5: Solve for x
    x = 292,879,301,531,240,512/680,367,840.74
  6. Step 6: Final answer
    x = 430,471,994.70

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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.