Home / 475,111,809.40-712,667,714.10-311,853,134.20

Finding the Fourth Proportional to 475,111,809.40, 712,667,714.10 and 311,853,134.20

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Solution

The fourth proportional to 475,111,809.40, 712,667,714.10 and 311,853,134.20 is: 467,779,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,111,809.40 : 712,667,714.10 = 311,853,134.20 : x
  2. Step 2: Convert to fraction form
    475,111,809.40/712,667,714.10 = 311,853,134.20/x
  3. Step 3: Cross multiply
    475,111,809.40x = 712,667,714.10 × 311,853,134.20
  4. Step 4: Simplify right side
    475,111,809.40x = 222,247,660,285,234,528
  5. Step 5: Solve for x
    x = 222,247,660,285,234,528/475,111,809.40
  6. Step 6: Final answer
    x = 467,779,701.30

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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.