Home / 765,784,054.68-1,056,767,642.13-468,404,451.78

Finding the Fourth Proportional to 765,784,054.68, 1,056,767,642.13 and 468,404,451.78

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Solution

The fourth proportional to 765,784,054.68, 1,056,767,642.13 and 468,404,451.78 is: 646,389,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,784,054.68 : 1,056,767,642.13 = 468,404,451.78 : x
  2. Step 2: Convert to fraction form
    765,784,054.68/1,056,767,642.13 = 468,404,451.78/x
  3. Step 3: Cross multiply
    765,784,054.68x = 1,056,767,642.13 × 468,404,451.78
  4. Step 4: Simplify right side
    765,784,054.68x = 494,994,668,073,474,944
  5. Step 5: Solve for x
    x = 494,994,668,073,474,944/765,784,054.68
  6. Step 6: Final answer
    x = 646,389,364.01

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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.