Home / 151,689,475.30-209,337,404.34-85,612,259.20

Finding the Fourth Proportional to 151,689,475.30, 209,337,404.34 and 85,612,259.20

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Solution

The fourth proportional to 151,689,475.30, 209,337,404.34 and 85,612,259.20 is: 118,148,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,689,475.30 : 209,337,404.34 = 85,612,259.20 : x
  2. Step 2: Convert to fraction form
    151,689,475.30/209,337,404.34 = 85,612,259.20/x
  3. Step 3: Cross multiply
    151,689,475.30x = 209,337,404.34 × 85,612,259.20
  4. Step 4: Simplify right side
    151,689,475.30x = 17,921,848,120,611,286
  5. Step 5: Solve for x
    x = 17,921,848,120,611,286/151,689,475.30
  6. Step 6: Final answer
    x = 118,148,263.65

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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.