Home / 556,722,120.74-768,263,126.22-309,203,671.82

Finding the Fourth Proportional to 556,722,120.74, 768,263,126.22 and 309,203,671.82

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Solution

The fourth proportional to 556,722,120.74, 768,263,126.22 and 309,203,671.82 is: 426,693,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,722,120.74 : 768,263,126.22 = 309,203,671.82 : x
  2. Step 2: Convert to fraction form
    556,722,120.74/768,263,126.22 = 309,203,671.82/x
  3. Step 3: Cross multiply
    556,722,120.74x = 768,263,126.22 × 309,203,671.82
  4. Step 4: Simplify right side
    556,722,120.74x = 237,549,779,547,294,816
  5. Step 5: Solve for x
    x = 237,549,779,547,294,816/556,722,120.74
  6. Step 6: Final answer
    x = 426,693,624.52

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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.