Home / 291,353,702.90-402,056,145.63-159,199,236.05

Finding the Fourth Proportional to 291,353,702.90, 402,056,145.63 and 159,199,236.05

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Solution

The fourth proportional to 291,353,702.90, 402,056,145.63 and 159,199,236.05 is: 219,688,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,353,702.90 : 402,056,145.63 = 159,199,236.05 : x
  2. Step 2: Convert to fraction form
    291,353,702.90/402,056,145.63 = 159,199,236.05/x
  3. Step 3: Cross multiply
    291,353,702.90x = 402,056,145.63 × 159,199,236.05
  4. Step 4: Simplify right side
    291,353,702.90x = 64,007,031,231,493,256
  5. Step 5: Solve for x
    x = 64,007,031,231,493,256/291,353,702.90
  6. Step 6: Final answer
    x = 219,688,408.27

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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.