Home / 256,392,064.20-384,578,765.10-102,996,467.40

Finding the Fourth Proportional to 256,392,064.20, 384,578,765.10 and 102,996,467.40

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Solution

The fourth proportional to 256,392,064.20, 384,578,765.10 and 102,996,467.40 is: 154,490,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,392,064.20 : 384,578,765.10 = 102,996,467.40 : x
  2. Step 2: Convert to fraction form
    256,392,064.20/384,578,765.10 = 102,996,467.40/x
  3. Step 3: Cross multiply
    256,392,064.20x = 384,578,765.10 × 102,996,467.40
  4. Step 4: Simplify right side
    256,392,064.20x = 39,610,254,242,354,416
  5. Step 5: Solve for x
    x = 39,610,254,242,354,416/256,392,064.20
  6. Step 6: Final answer
    x = 154,490,952.62

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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.