Home / 668,889,301.10-1,003,333,951.65-424,001,288.30

Finding the Fourth Proportional to 668,889,301.10, 1,003,333,951.65 and 424,001,288.30

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Solution

The fourth proportional to 668,889,301.10, 1,003,333,951.65 and 424,001,288.30 is: 636,001,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,301.10 : 1,003,333,951.65 = 424,001,288.30 : x
  2. Step 2: Convert to fraction form
    668,889,301.10/1,003,333,951.65 = 424,001,288.30/x
  3. Step 3: Cross multiply
    668,889,301.10x = 1,003,333,951.65 × 424,001,288.30
  4. Step 4: Simplify right side
    668,889,301.10x = 425,414,888,094,729,920
  5. Step 5: Solve for x
    x = 425,414,888,094,729,920/668,889,301.10
  6. Step 6: Final answer
    x = 636,001,932.45

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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.