Home / 398,619,186.30-597,928,779.45-358,442,246.70

Finding the Fourth Proportional to 398,619,186.30, 597,928,779.45 and 358,442,246.70

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Solution

The fourth proportional to 398,619,186.30, 597,928,779.45 and 358,442,246.70 is: 537,663,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,619,186.30 : 597,928,779.45 = 358,442,246.70 : x
  2. Step 2: Convert to fraction form
    398,619,186.30/597,928,779.45 = 358,442,246.70/x
  3. Step 3: Cross multiply
    398,619,186.30x = 597,928,779.45 × 358,442,246.70
  4. Step 4: Simplify right side
    398,619,186.30x = 214,322,935,072,646,816
  5. Step 5: Solve for x
    x = 214,322,935,072,646,816/398,619,186.30
  6. Step 6: Final answer
    x = 537,663,370.05

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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.