Home / 557,390,079.14-769,154,736.57-309,856,360.10

Finding the Fourth Proportional to 557,390,079.14, 769,154,736.57 and 309,856,360.10

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Solution

The fourth proportional to 557,390,079.14, 769,154,736.57 and 309,856,360.10 is: 427,577,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,390,079.14 : 769,154,736.57 = 309,856,360.10 : x
  2. Step 2: Convert to fraction form
    557,390,079.14/769,154,736.57 = 309,856,360.10/x
  3. Step 3: Cross multiply
    557,390,079.14x = 769,154,736.57 × 309,856,360.10
  4. Step 4: Simplify right side
    557,390,079.14x = 238,327,487,027,254,592
  5. Step 5: Solve for x
    x = 238,327,487,027,254,592/557,390,079.14
  6. Step 6: Final answer
    x = 427,577,554.65

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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.