Home / 304,417,445.28-419,406,585.12-289,905,563.04

Finding the Fourth Proportional to 304,417,445.28, 419,406,585.12 and 289,905,563.04

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Solution

The fourth proportional to 304,417,445.28, 419,406,585.12 and 289,905,563.04 is: 399,413,056.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,417,445.28 : 419,406,585.12 = 289,905,563.04 : x
  2. Step 2: Convert to fraction form
    304,417,445.28/419,406,585.12 = 289,905,563.04/x
  3. Step 3: Cross multiply
    304,417,445.28x = 419,406,585.12 × 289,905,563.04
  4. Step 4: Simplify right side
    304,417,445.28x = 121,588,302,201,897,296
  5. Step 5: Solve for x
    x = 121,588,302,201,897,296/304,417,445.28
  6. Step 6: Final answer
    x = 399,413,056.27

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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.