Home / 686,593,808.60-1,029,890,712.90-169,020,138.20

Finding the Fourth Proportional to 686,593,808.60, 1,029,890,712.90 and 169,020,138.20

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Solution

The fourth proportional to 686,593,808.60, 1,029,890,712.90 and 169,020,138.20 is: 253,530,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,593,808.60 : 1,029,890,712.90 = 169,020,138.20 : x
  2. Step 2: Convert to fraction form
    686,593,808.60/1,029,890,712.90 = 169,020,138.20/x
  3. Step 3: Cross multiply
    686,593,808.60x = 1,029,890,712.90 × 169,020,138.20
  4. Step 4: Simplify right side
    686,593,808.60x = 174,072,270,625,254,496
  5. Step 5: Solve for x
    x = 174,072,270,625,254,496/686,593,808.60
  6. Step 6: Final answer
    x = 253,530,207.30

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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.