Home / 290,928,783.78-401,490,233.28-158,778,256.32

Finding the Fourth Proportional to 290,928,783.78, 401,490,233.28 and 158,778,256.32

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Solution

The fourth proportional to 290,928,783.78, 401,490,233.28 and 158,778,256.32 is: 219,118,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,928,783.78 : 401,490,233.28 = 158,778,256.32 : x
  2. Step 2: Convert to fraction form
    290,928,783.78/401,490,233.28 = 158,778,256.32/x
  3. Step 3: Cross multiply
    290,928,783.78x = 401,490,233.28 × 158,778,256.32
  4. Step 4: Simplify right side
    290,928,783.78x = 63,747,919,169,708,424
  5. Step 5: Solve for x
    x = 63,747,919,169,708,424/290,928,783.78
  6. Step 6: Final answer
    x = 219,118,639.08

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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.