Home / 570,192,537.66-786,865,669.86-309,432,153.66

Finding the Fourth Proportional to 570,192,537.66, 786,865,669.86 and 309,432,153.66

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Solution

The fourth proportional to 570,192,537.66, 786,865,669.86 and 309,432,153.66 is: 427,016,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,192,537.66 : 786,865,669.86 = 309,432,153.66 : x
  2. Step 2: Convert to fraction form
    570,192,537.66/786,865,669.86 = 309,432,153.66/x
  3. Step 3: Cross multiply
    570,192,537.66x = 786,865,669.86 × 309,432,153.66
  4. Step 4: Simplify right side
    570,192,537.66x = 243,481,538,865,898,368
  5. Step 5: Solve for x
    x = 243,481,538,865,898,368/570,192,537.66
  6. Step 6: Final answer
    x = 427,016,354.62

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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.