Home / 672,560,456.80-1,009,596,512.40-519,883,362.40

Finding the Fourth Proportional to 672,560,456.80, 1,009,596,512.40 and 519,883,362.40

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Solution

The fourth proportional to 672,560,456.80, 1,009,596,512.40 and 519,883,362.40 is: 780,409,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,560,456.80 : 1,009,596,512.40 = 519,883,362.40 : x
  2. Step 2: Convert to fraction form
    672,560,456.80/1,009,596,512.40 = 519,883,362.40/x
  3. Step 3: Cross multiply
    672,560,456.80x = 1,009,596,512.40 × 519,883,362.40
  4. Step 4: Simplify right side
    672,560,456.80x = 524,872,429,533,825,280
  5. Step 5: Solve for x
    x = 524,872,429,533,825,280/672,560,456.80
  6. Step 6: Final answer
    x = 780,409,291.43

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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.