Home / 422,477,818.40-633,716,727.60-407,172,317.60

Finding the Fourth Proportional to 422,477,818.40, 633,716,727.60 and 407,172,317.60

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Solution

The fourth proportional to 422,477,818.40, 633,716,727.60 and 407,172,317.60 is: 610,758,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,477,818.40 : 633,716,727.60 = 407,172,317.60 : x
  2. Step 2: Convert to fraction form
    422,477,818.40/633,716,727.60 = 407,172,317.60/x
  3. Step 3: Cross multiply
    422,477,818.40x = 633,716,727.60 × 407,172,317.60
  4. Step 4: Simplify right side
    422,477,818.40x = 258,031,908,678,779,904
  5. Step 5: Solve for x
    x = 258,031,908,678,779,904/422,477,818.40
  6. Step 6: Final answer
    x = 610,758,476.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.