Home / 631,154,018.20-946,731,027.30-355,655,003.80

Finding the Fourth Proportional to 631,154,018.20, 946,731,027.30 and 355,655,003.80

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Solution

The fourth proportional to 631,154,018.20, 946,731,027.30 and 355,655,003.80 is: 533,482,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,154,018.20 : 946,731,027.30 = 355,655,003.80 : x
  2. Step 2: Convert to fraction form
    631,154,018.20/946,731,027.30 = 355,655,003.80/x
  3. Step 3: Cross multiply
    631,154,018.20x = 946,731,027.30 × 355,655,003.80
  4. Step 4: Simplify right side
    631,154,018.20x = 336,709,627,111,959,424
  5. Step 5: Solve for x
    x = 336,709,627,111,959,424/631,154,018.20
  6. Step 6: Final answer
    x = 533,482,505.70

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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.