Home / 278,730,401.32-384,658,067.21-159,676,003.07

Finding the Fourth Proportional to 278,730,401.32, 384,658,067.21 and 159,676,003.07

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Solution

The fourth proportional to 278,730,401.32, 384,658,067.21 and 159,676,003.07 is: 220,358,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,730,401.32 : 384,658,067.21 = 159,676,003.07 : x
  2. Step 2: Convert to fraction form
    278,730,401.32/384,658,067.21 = 159,676,003.07/x
  3. Step 3: Cross multiply
    278,730,401.32x = 384,658,067.21 × 159,676,003.07
  4. Step 4: Simplify right side
    278,730,401.32x = 61,420,662,720,724,224
  5. Step 5: Solve for x
    x = 61,420,662,720,724,224/278,730,401.32
  6. Step 6: Final answer
    x = 220,358,677.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.