Home / 1,042,939,263.31-1,564,409,456.73-387,805,163.47

Finding the Fourth Proportional to 1,042,939,263.31, 1,564,409,456.73 and 387,805,163.47

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Solution

The fourth proportional to 1,042,939,263.31, 1,564,409,456.73 and 387,805,163.47 is: 581,707,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,939,263.31 : 1,564,409,456.73 = 387,805,163.47 : x
  2. Step 2: Convert to fraction form
    1,042,939,263.31/1,564,409,456.73 = 387,805,163.47/x
  3. Step 3: Cross multiply
    1,042,939,263.31x = 1,564,409,456.73 × 387,805,163.47
  4. Step 4: Simplify right side
    1,042,939,263.31x = 606,686,065,101,191,552
  5. Step 5: Solve for x
    x = 606,686,065,101,191,552/1,042,939,263.31
  6. Step 6: Final answer
    x = 581,707,954.09

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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.