Home / 668,736,005.70-1,003,104,008.55-406,841,880.90

Finding the Fourth Proportional to 668,736,005.70, 1,003,104,008.55 and 406,841,880.90

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Solution

The fourth proportional to 668,736,005.70, 1,003,104,008.55 and 406,841,880.90 is: 610,262,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,736,005.70 : 1,003,104,008.55 = 406,841,880.90 : x
  2. Step 2: Convert to fraction form
    668,736,005.70/1,003,104,008.55 = 406,841,880.90/x
  3. Step 3: Cross multiply
    668,736,005.70x = 1,003,104,008.55 × 406,841,880.90
  4. Step 4: Simplify right side
    668,736,005.70x = 408,104,721,576,811,648
  5. Step 5: Solve for x
    x = 408,104,721,576,811,648/668,736,005.70
  6. Step 6: Final answer
    x = 610,262,821.35

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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.