Home / 842,770,809.52-1,163,015,150.42-466,428,127.98

Finding the Fourth Proportional to 842,770,809.52, 1,163,015,150.42 and 466,428,127.98

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Solution

The fourth proportional to 842,770,809.52, 1,163,015,150.42 and 466,428,127.98 is: 643,666,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,770,809.52 : 1,163,015,150.42 = 466,428,127.98 : x
  2. Step 2: Convert to fraction form
    842,770,809.52/1,163,015,150.42 = 466,428,127.98/x
  3. Step 3: Cross multiply
    842,770,809.52x = 1,163,015,150.42 × 466,428,127.98
  4. Step 4: Simplify right side
    842,770,809.52x = 542,462,979,422,778,752
  5. Step 5: Solve for x
    x = 542,462,979,422,778,752/842,770,809.52
  6. Step 6: Final answer
    x = 643,666,075.40

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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.