Home / 1,092,906,031.40-1,638,792,176.70-402,457,884.20

Finding the Fourth Proportional to 1,092,906,031.40, 1,638,792,176.70 and 402,457,884.20

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Solution

The fourth proportional to 1,092,906,031.40, 1,638,792,176.70 and 402,457,884.20 is: 603,478,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,906,031.40 : 1,638,792,176.70 = 402,457,884.20 : x
  2. Step 2: Convert to fraction form
    1,092,906,031.40/1,638,792,176.70 = 402,457,884.20/x
  3. Step 3: Cross multiply
    1,092,906,031.40x = 1,638,792,176.70 × 402,457,884.20
  4. Step 4: Simplify right side
    1,092,906,031.40x = 659,544,832,078,194,560
  5. Step 5: Solve for x
    x = 659,544,832,078,194,560/1,092,906,031.40
  6. Step 6: Final answer
    x = 603,478,078.75

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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.