Home / 686,593,807.60-1,029,890,711.40-169,020,137.20

Finding the Fourth Proportional to 686,593,807.60, 1,029,890,711.40 and 169,020,137.20

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Solution

The fourth proportional to 686,593,807.60, 1,029,890,711.40 and 169,020,137.20 is: 253,530,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,593,807.60 : 1,029,890,711.40 = 169,020,137.20 : x
  2. Step 2: Convert to fraction form
    686,593,807.60/1,029,890,711.40 = 169,020,137.20/x
  3. Step 3: Cross multiply
    686,593,807.60x = 1,029,890,711.40 × 169,020,137.20
  4. Step 4: Simplify right side
    686,593,807.60x = 174,072,269,341,833,600
  5. Step 5: Solve for x
    x = 174,072,269,341,833,600/686,593,807.60
  6. Step 6: Final answer
    x = 253,530,205.80

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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.