Home / 570,188,687.04-786,860,943.84-309,428,303.04

Finding the Fourth Proportional to 570,188,687.04, 786,860,943.84 and 309,428,303.04

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Solution

The fourth proportional to 570,188,687.04, 786,860,943.84 and 309,428,303.04 is: 427,011,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,188,687.04 : 786,860,943.84 = 309,428,303.04 : x
  2. Step 2: Convert to fraction form
    570,188,687.04/786,860,943.84 = 309,428,303.04/x
  3. Step 3: Cross multiply
    570,188,687.04x = 786,860,943.84 × 309,428,303.04
  4. Step 4: Simplify right side
    570,188,687.04x = 243,477,046,580,863,968
  5. Step 5: Solve for x
    x = 243,477,046,580,863,968/570,188,687.04
  6. Step 6: Final answer
    x = 427,011,359.77

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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.