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Finding the Fourth Proportional to 668,889,277.10, 1,003,333,915.65 and 424,001,264.30

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Solution

The fourth proportional to 668,889,277.10, 1,003,333,915.65 and 424,001,264.30 is: 636,001,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,277.10 : 1,003,333,915.65 = 424,001,264.30 : x
  2. Step 2: Convert to fraction form
    668,889,277.10/1,003,333,915.65 = 424,001,264.30/x
  3. Step 3: Cross multiply
    668,889,277.10x = 1,003,333,915.65 × 424,001,264.30
  4. Step 4: Simplify right side
    668,889,277.10x = 425,414,848,750,669,568
  5. Step 5: Solve for x
    x = 425,414,848,750,669,568/668,889,277.10
  6. Step 6: Final answer
    x = 636,001,896.45

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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.