Home / 256,022,145.28-353,310,549.60-138,547,479.16

Finding the Fourth Proportional to 256,022,145.28, 353,310,549.60 and 138,547,479.16

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Solution

The fourth proportional to 256,022,145.28, 353,310,549.60 and 138,547,479.16 is: 191,195,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,022,145.28 : 353,310,549.60 = 138,547,479.16 : x
  2. Step 2: Convert to fraction form
    256,022,145.28/353,310,549.60 = 138,547,479.16/x
  3. Step 3: Cross multiply
    256,022,145.28x = 353,310,549.60 × 138,547,479.16
  4. Step 4: Simplify right side
    256,022,145.28x = 48,950,286,007,714,152
  5. Step 5: Solve for x
    x = 48,950,286,007,714,152/256,022,145.28
  6. Step 6: Final answer
    x = 191,195,515.35

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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.