Home / 428,034,948.30-590,724,657.64-242,428,982.22

Finding the Fourth Proportional to 428,034,948.30, 590,724,657.64 and 242,428,982.22

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Solution

The fourth proportional to 428,034,948.30, 590,724,657.64 and 242,428,982.22 is: 334,572,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,034,948.30 : 590,724,657.64 = 242,428,982.22 : x
  2. Step 2: Convert to fraction form
    428,034,948.30/590,724,657.64 = 242,428,982.22/x
  3. Step 3: Cross multiply
    428,034,948.30x = 590,724,657.64 × 242,428,982.22
  4. Step 4: Simplify right side
    428,034,948.30x = 143,208,777,523,923,136
  5. Step 5: Solve for x
    x = 143,208,777,523,923,136/428,034,948.30
  6. Step 6: Final answer
    x = 334,572,627.99

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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.