Home / 494,656,953.72-742,129,036.83-199,399,699.77

Finding the Fourth Proportional to 494,656,953.72, 742,129,036.83 and 199,399,699.77

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Solution

The fourth proportional to 494,656,953.72, 742,129,036.83 and 199,399,699.77 is: 299,157,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,656,953.72 : 742,129,036.83 = 199,399,699.77 : x
  2. Step 2: Convert to fraction form
    494,656,953.72/742,129,036.83 = 199,399,699.77/x
  3. Step 3: Cross multiply
    494,656,953.72x = 742,129,036.83 × 199,399,699.77
  4. Step 4: Simplify right side
    494,656,953.72x = 147,980,307,134,501,280
  5. Step 5: Solve for x
    x = 147,980,307,134,501,280/494,656,953.72
  6. Step 6: Final answer
    x = 299,157,438.35

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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.