Home / 668,736,009.20-1,003,104,013.80-406,841,884.40

Finding the Fourth Proportional to 668,736,009.20, 1,003,104,013.80 and 406,841,884.40

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Solution

The fourth proportional to 668,736,009.20, 1,003,104,013.80 and 406,841,884.40 is: 610,262,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,736,009.20 : 1,003,104,013.80 = 406,841,884.40 : x
  2. Step 2: Convert to fraction form
    668,736,009.20/1,003,104,013.80 = 406,841,884.40/x
  3. Step 3: Cross multiply
    668,736,009.20x = 1,003,104,013.80 × 406,841,884.40
  4. Step 4: Simplify right side
    668,736,009.20x = 408,104,727,223,595,584
  5. Step 5: Solve for x
    x = 408,104,727,223,595,584/668,736,009.20
  6. Step 6: Final answer
    x = 610,262,826.60

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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.