Home / 759,809,478.28-1,139,423,691.48-414,578,581.24

Finding the Fourth Proportional to 759,809,478.28, 1,139,423,691.48 and 414,578,581.24

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Solution

The fourth proportional to 759,809,478.28, 1,139,423,691.48 and 414,578,581.24 is: 621,709,350.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,809,478.28 : 1,139,423,691.48 = 414,578,581.24 : x
  2. Step 2: Convert to fraction form
    759,809,478.28/1,139,423,691.48 = 414,578,581.24/x
  3. Step 3: Cross multiply
    759,809,478.28x = 1,139,423,691.48 × 414,578,581.24
  4. Step 4: Simplify right side
    759,809,478.28x = 472,380,657,445,021,888
  5. Step 5: Solve for x
    x = 472,380,657,445,021,888/759,809,478.28
  6. Step 6: Final answer
    x = 621,709,350.76

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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.