Home / 840,117,666.20-1,258,160,960.10-408,792,277.40

Finding the Fourth Proportional to 840,117,666.20, 1,258,160,960.10 and 408,792,277.40

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Solution

The fourth proportional to 840,117,666.20, 1,258,160,960.10 and 408,792,277.40 is: 612,207,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,117,666.20 : 1,258,160,960.10 = 408,792,277.40 : x
  2. Step 2: Convert to fraction form
    840,117,666.20/1,258,160,960.10 = 408,792,277.40/x
  3. Step 3: Cross multiply
    840,117,666.20x = 1,258,160,960.10 × 408,792,277.40
  4. Step 4: Simplify right side
    840,117,666.20x = 514,326,484,215,049,472
  5. Step 5: Solve for x
    x = 514,326,484,215,049,472/840,117,666.20
  6. Step 6: Final answer
    x = 612,207,676.27

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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.