Home / 579,456,875.40-869,185,313.10-395,790,865.80

Finding the Fourth Proportional to 579,456,875.40, 869,185,313.10 and 395,790,865.80

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Solution

The fourth proportional to 579,456,875.40, 869,185,313.10 and 395,790,865.80 is: 593,686,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,456,875.40 : 869,185,313.10 = 395,790,865.80 : x
  2. Step 2: Convert to fraction form
    579,456,875.40/869,185,313.10 = 395,790,865.80/x
  3. Step 3: Cross multiply
    579,456,875.40x = 869,185,313.10 × 395,790,865.80
  4. Step 4: Simplify right side
    579,456,875.40x = 344,015,607,612,493,120
  5. Step 5: Solve for x
    x = 344,015,607,612,493,120/579,456,875.40
  6. Step 6: Final answer
    x = 593,686,298.70

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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.