Home / 278,211,973,264.72-417,341,999,105.20-76,753,708,411.36

Finding the Fourth Proportional to 278,211,973,264.72, 417,341,999,105.20 and 76,753,708,411.36

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Solution

The fourth proportional to 278,211,973,264.72, 417,341,999,105.20 and 76,753,708,411.36 is: 115,137,194,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,211,973,264.72 : 417,341,999,105.20 = 76,753,708,411.36 : x
  2. Step 2: Convert to fraction form
    278,211,973,264.72/417,341,999,105.20 = 76,753,708,411.36/x
  3. Step 3: Cross multiply
    278,211,973,264.72x = 417,341,999,105.20 × 76,753,708,411.36
  4. Step 4: Simplify right side
    278,211,973,264.72x = 32,032,546,107,132,500,508,672
  5. Step 5: Solve for x
    x = 32,032,546,107,132,500,508,672/278,211,973,264.72
  6. Step 6: Final answer
    x = 115,137,194,604.68

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1.5x scale

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.