Home / 791,211,051.54-1,186,925,714.62-459,374,338.87

Finding the Fourth Proportional to 791,211,051.54, 1,186,925,714.62 and 459,374,338.87

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Solution

The fourth proportional to 791,211,051.54, 1,186,925,714.62 and 459,374,338.87 is: 689,124,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,211,051.54 : 1,186,925,714.62 = 459,374,338.87 : x
  2. Step 2: Convert to fraction form
    791,211,051.54/1,186,925,714.62 = 459,374,338.87/x
  3. Step 3: Cross multiply
    791,211,051.54x = 1,186,925,714.62 × 459,374,338.87
  4. Step 4: Simplify right side
    791,211,051.54x = 545,243,215,444,153,152
  5. Step 5: Solve for x
    x = 545,243,215,444,153,152/791,211,051.54
  6. Step 6: Final answer
    x = 689,124,873.05

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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.