Home / 768,833,665.92-1,060,140,303.36-489,933,429.12

Finding the Fourth Proportional to 768,833,665.92, 1,060,140,303.36 and 489,933,429.12

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Solution

The fourth proportional to 768,833,665.92, 1,060,140,303.36 and 489,933,429.12 is: 675,566,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,833,665.92 : 1,060,140,303.36 = 489,933,429.12 : x
  2. Step 2: Convert to fraction form
    768,833,665.92/1,060,140,303.36 = 489,933,429.12/x
  3. Step 3: Cross multiply
    768,833,665.92x = 1,060,140,303.36 × 489,933,429.12
  4. Step 4: Simplify right side
    768,833,665.92x = 519,398,174,173,481,856
  5. Step 5: Solve for x
    x = 519,398,174,173,481,856/768,833,665.92
  6. Step 6: Final answer
    x = 675,566,376.96

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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.