Home / 811,478,369.07-1,217,268,046.68-293,913,293.58

Finding the Fourth Proportional to 811,478,369.07, 1,217,268,046.68 and 293,913,293.58

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Solution

The fourth proportional to 811,478,369.07, 1,217,268,046.68 and 293,913,293.58 is: 440,888,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,478,369.07 : 1,217,268,046.68 = 293,913,293.58 : x
  2. Step 2: Convert to fraction form
    811,478,369.07/1,217,268,046.68 = 293,913,293.58/x
  3. Step 3: Cross multiply
    811,478,369.07x = 1,217,268,046.68 × 293,913,293.58
  4. Step 4: Simplify right side
    811,478,369.07x = 357,771,260,769,411,968
  5. Step 5: Solve for x
    x = 357,771,260,769,411,968/811,478,369.07
  6. Step 6: Final answer
    x = 440,888,228.70

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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.