Home / 621,602,534.65-857,807,134.01-339,344,975.42

Finding the Fourth Proportional to 621,602,534.65, 857,807,134.01 and 339,344,975.42

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Solution

The fourth proportional to 621,602,534.65, 857,807,134.01 and 339,344,975.42 is: 468,293,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,602,534.65 : 857,807,134.01 = 339,344,975.42 : x
  2. Step 2: Convert to fraction form
    621,602,534.65/857,807,134.01 = 339,344,975.42/x
  3. Step 3: Cross multiply
    621,602,534.65x = 857,807,134.01 × 339,344,975.42
  4. Step 4: Simplify right side
    621,602,534.65x = 291,092,540,805,724,096
  5. Step 5: Solve for x
    x = 291,092,540,805,724,096/621,602,534.65
  6. Step 6: Final answer
    x = 468,293,683.80

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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.