Home / 438,576,386.31-657,421,656.63-274,928,845.77

Finding the Fourth Proportional to 438,576,386.31, 657,421,656.63 and 274,928,845.77

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Solution

The fourth proportional to 438,576,386.31, 657,421,656.63 and 274,928,845.77 is: 412,115,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,576,386.31 : 657,421,656.63 = 274,928,845.77 : x
  2. Step 2: Convert to fraction form
    438,576,386.31/657,421,656.63 = 274,928,845.77/x
  3. Step 3: Cross multiply
    438,576,386.31x = 657,421,656.63 × 274,928,845.77
  4. Step 4: Simplify right side
    438,576,386.31x = 180,744,177,241,487,168
  5. Step 5: Solve for x
    x = 180,744,177,241,487,168/438,576,386.31
  6. Step 6: Final answer
    x = 412,115,615.17

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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.