Home / 290,322,006.30-435,483,009.45-280,468,259.10

Finding the Fourth Proportional to 290,322,006.30, 435,483,009.45 and 280,468,259.10

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Solution

The fourth proportional to 290,322,006.30, 435,483,009.45 and 280,468,259.10 is: 420,702,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,322,006.30 : 435,483,009.45 = 280,468,259.10 : x
  2. Step 2: Convert to fraction form
    290,322,006.30/435,483,009.45 = 280,468,259.10/x
  3. Step 3: Cross multiply
    290,322,006.30x = 435,483,009.45 × 280,468,259.10
  4. Step 4: Simplify right side
    290,322,006.30x = 122,139,161,528,070,352
  5. Step 5: Solve for x
    x = 122,139,161,528,070,352/290,322,006.30
  6. Step 6: Final answer
    x = 420,702,388.65

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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.