Home / 668,745,525.60-1,003,118,288.40-208,623,907.80

Finding the Fourth Proportional to 668,745,525.60, 1,003,118,288.40 and 208,623,907.80

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Solution

The fourth proportional to 668,745,525.60, 1,003,118,288.40 and 208,623,907.80 is: 312,935,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,745,525.60 : 1,003,118,288.40 = 208,623,907.80 : x
  2. Step 2: Convert to fraction form
    668,745,525.60/1,003,118,288.40 = 208,623,907.80/x
  3. Step 3: Cross multiply
    668,745,525.60x = 1,003,118,288.40 × 208,623,907.80
  4. Step 4: Simplify right side
    668,745,525.60x = 209,274,457,311,655,424
  5. Step 5: Solve for x
    x = 209,274,457,311,655,424/668,745,525.60
  6. Step 6: Final answer
    x = 312,935,861.70

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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.