Home / 668,889,272.35-1,003,333,908.53-424,001,259.55

Finding the Fourth Proportional to 668,889,272.35, 1,003,333,908.53 and 424,001,259.55

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Solution

The fourth proportional to 668,889,272.35, 1,003,333,908.53 and 424,001,259.55 is: 636,001,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,272.35 : 1,003,333,908.53 = 424,001,259.55 : x
  2. Step 2: Convert to fraction form
    668,889,272.35/1,003,333,908.53 = 424,001,259.55/x
  3. Step 3: Cross multiply
    668,889,272.35x = 1,003,333,908.53 × 424,001,259.55
  4. Step 4: Simplify right side
    668,889,272.35x = 425,414,840,965,944,512
  5. Step 5: Solve for x
    x = 425,414,840,965,944,512/668,889,272.35
  6. Step 6: Final answer
    x = 636,001,889.33

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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.