Home / 217,517,455.81-300,182,009.03-118,393,412.14

Finding the Fourth Proportional to 217,517,455.81, 300,182,009.03 and 118,393,412.14

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Solution

The fourth proportional to 217,517,455.81, 300,182,009.03 and 118,393,412.14 is: 163,387,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,517,455.81 : 300,182,009.03 = 118,393,412.14 : x
  2. Step 2: Convert to fraction form
    217,517,455.81/300,182,009.03 = 118,393,412.14/x
  3. Step 3: Cross multiply
    217,517,455.81x = 300,182,009.03 × 118,393,412.14
  4. Step 4: Simplify right side
    217,517,455.81x = 35,539,572,312,101,988
  5. Step 5: Solve for x
    x = 35,539,572,312,101,988/217,517,455.81
  6. Step 6: Final answer
    x = 163,387,219.57

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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.