Home / 156,119,319.33-215,444,913.93-85,543,714.67

Finding the Fourth Proportional to 156,119,319.33, 215,444,913.93 and 85,543,714.67

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Solution

The fourth proportional to 156,119,319.33, 215,444,913.93 and 85,543,714.67 is: 118,050,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119,319.33 : 215,444,913.93 = 85,543,714.67 : x
  2. Step 2: Convert to fraction form
    156,119,319.33/215,444,913.93 = 85,543,714.67/x
  3. Step 3: Cross multiply
    156,119,319.33x = 215,444,913.93 × 85,543,714.67
  4. Step 4: Simplify right side
    156,119,319.33x = 18,429,958,244,330,628
  5. Step 5: Solve for x
    x = 18,429,958,244,330,628/156,119,319.33
  6. Step 6: Final answer
    x = 118,050,465.01

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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.