Home / 668,889,293.35-1,003,333,940.03-424,001,280.55

Finding the Fourth Proportional to 668,889,293.35, 1,003,333,940.03 and 424,001,280.55

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Solution

The fourth proportional to 668,889,293.35, 1,003,333,940.03 and 424,001,280.55 is: 636,001,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,293.35 : 1,003,333,940.03 = 424,001,280.55 : x
  2. Step 2: Convert to fraction form
    668,889,293.35/1,003,333,940.03 = 424,001,280.55/x
  3. Step 3: Cross multiply
    668,889,293.35x = 1,003,333,940.03 × 424,001,280.55
  4. Step 4: Simplify right side
    668,889,293.35x = 425,414,875,391,996,928
  5. Step 5: Solve for x
    x = 425,414,875,391,996,928/668,889,293.35
  6. Step 6: Final answer
    x = 636,001,920.83

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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.