Home / 156,548,431.34-216,039,437.21-85,990,565.78

Finding the Fourth Proportional to 156,548,431.34, 216,039,437.21 and 85,990,565.78

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Solution

The fourth proportional to 156,548,431.34, 216,039,437.21 and 85,990,565.78 is: 118,668,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,548,431.34 : 216,039,437.21 = 85,990,565.78 : x
  2. Step 2: Convert to fraction form
    156,548,431.34/216,039,437.21 = 85,990,565.78/x
  3. Step 3: Cross multiply
    156,548,431.34x = 216,039,437.21 × 85,990,565.78
  4. Step 4: Simplify right side
    156,548,431.34x = 18,577,353,436,425,612
  5. Step 5: Solve for x
    x = 18,577,353,436,425,612/156,548,431.34
  6. Step 6: Final answer
    x = 118,668,410.01

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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.