Home / 156,119,314.83-215,444,907.72-85,543,710.17

Finding the Fourth Proportional to 156,119,314.83, 215,444,907.72 and 85,543,710.17

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Solution

The fourth proportional to 156,119,314.83, 215,444,907.72 and 85,543,710.17 is: 118,050,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119,314.83 : 215,444,907.72 = 85,543,710.17 : x
  2. Step 2: Convert to fraction form
    156,119,314.83/215,444,907.72 = 85,543,710.17/x
  3. Step 3: Cross multiply
    156,119,314.83x = 215,444,907.72 × 85,543,710.17
  4. Step 4: Simplify right side
    156,119,314.83x = 18,429,956,742,524,852
  5. Step 5: Solve for x
    x = 18,429,956,742,524,852/156,119,314.83
  6. Step 6: Final answer
    x = 118,050,458.80

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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.