Home / 357,117,022.81-492,875,278.73-217,968,644.89

Finding the Fourth Proportional to 357,117,022.81, 492,875,278.73 and 217,968,644.89

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Solution

The fourth proportional to 357,117,022.81, 492,875,278.73 and 217,968,644.89 is: 300,829,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,117,022.81 : 492,875,278.73 = 217,968,644.89 : x
  2. Step 2: Convert to fraction form
    357,117,022.81/492,875,278.73 = 217,968,644.89/x
  3. Step 3: Cross multiply
    357,117,022.81x = 492,875,278.73 × 217,968,644.89
  4. Step 4: Simplify right side
    357,117,022.81x = 107,431,356,604,559,136
  5. Step 5: Solve for x
    x = 107,431,356,604,559,136/357,117,022.81
  6. Step 6: Final answer
    x = 300,829,559.34

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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.