Home / 1,216,037,390.61-1,678,134,071.87-659,120,814.93

Finding the Fourth Proportional to 1,216,037,390.61, 1,678,134,071.87 and 659,120,814.93

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Solution

The fourth proportional to 1,216,037,390.61, 1,678,134,071.87 and 659,120,814.93 is: 909,588,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,037,390.61 : 1,678,134,071.87 = 659,120,814.93 : x
  2. Step 2: Convert to fraction form
    1,216,037,390.61/1,678,134,071.87 = 659,120,814.93/x
  3. Step 3: Cross multiply
    1,216,037,390.61x = 1,678,134,071.87 × 659,120,814.93
  4. Step 4: Simplify right side
    1,216,037,390.61x = 1,106,093,097,012,753,408
  5. Step 5: Solve for x
    x = 1,106,093,097,012,753,408/1,216,037,390.61
  6. Step 6: Final answer
    x = 909,588,064.93

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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.