Home / 859,212,345.28-1,288,123,420.50-268,698,772

Finding the Fourth Proportional to 859,212,345.28, 1,288,123,420.50 and 268,698,772

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Solution

The fourth proportional to 859,212,345.28, 1,288,123,420.50 and 268,698,772 is: 402,830,782.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,212,345.28 : 1,288,123,420.50 = 268,698,772 : x
  2. Step 2: Convert to fraction form
    859,212,345.28/1,288,123,420.50 = 268,698,772/x
  3. Step 3: Cross multiply
    859,212,345.28x = 1,288,123,420.50 × 268,698,772
  4. Step 4: Simplify right side
    859,212,345.28x = 346,117,181,272,789,632
  5. Step 5: Solve for x
    x = 346,117,181,272,789,632/859,212,345.28
  6. Step 6: Final answer
    x = 402,830,782.37

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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.