Home / 290,316,844.27-400,636,543.66-158,158,926.78

Finding the Fourth Proportional to 290,316,844.27, 400,636,543.66 and 158,158,926.78

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Solution

The fourth proportional to 290,316,844.27, 400,636,543.66 and 158,158,926.78 is: 218,258,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,316,844.27 : 400,636,543.66 = 158,158,926.78 : x
  2. Step 2: Convert to fraction form
    290,316,844.27/400,636,543.66 = 158,158,926.78/x
  3. Step 3: Cross multiply
    290,316,844.27x = 400,636,543.66 × 158,158,926.78
  4. Step 4: Simplify right side
    290,316,844.27x = 63,364,245,774,114,216
  5. Step 5: Solve for x
    x = 63,364,245,774,114,216/290,316,844.27
  6. Step 6: Final answer
    x = 218,258,936.83

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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.