Home / 290,316,843.27-400,636,542.29-158,158,925.78

Finding the Fourth Proportional to 290,316,843.27, 400,636,542.29 and 158,158,925.78

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Solution

The fourth proportional to 290,316,843.27, 400,636,542.29 and 158,158,925.78 is: 218,258,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,316,843.27 : 400,636,542.29 = 158,158,925.78 : x
  2. Step 2: Convert to fraction form
    290,316,843.27/400,636,542.29 = 158,158,925.78/x
  3. Step 3: Cross multiply
    290,316,843.27x = 400,636,542.29 × 158,158,925.78
  4. Step 4: Simplify right side
    290,316,843.27x = 63,364,245,154,005,968
  5. Step 5: Solve for x
    x = 63,364,245,154,005,968/290,316,843.27
  6. Step 6: Final answer
    x = 218,258,935.45

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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.