Home / 668,957,913.74-1,003,430,480.60-406,714,867.30

Finding the Fourth Proportional to 668,957,913.74, 1,003,430,480.60 and 406,714,867.30

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Solution

The fourth proportional to 668,957,913.74, 1,003,430,480.60 and 406,714,867.30 is: 610,068,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,957,913.74 : 1,003,430,480.60 = 406,714,867.30 : x
  2. Step 2: Convert to fraction form
    668,957,913.74/1,003,430,480.60 = 406,714,867.30/x
  3. Step 3: Cross multiply
    668,957,913.74x = 1,003,430,480.60 × 406,714,867.30
  4. Step 4: Simplify right side
    668,957,913.74x = 408,110,094,762,035,072
  5. Step 5: Solve for x
    x = 408,110,094,762,035,072/668,957,913.74
  6. Step 6: Final answer
    x = 610,068,415.94

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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.