Home / 512,038,992.68-706,537,798.56-310,991,245.67

Finding the Fourth Proportional to 512,038,992.68, 706,537,798.56 and 310,991,245.67

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Solution

The fourth proportional to 512,038,992.68, 706,537,798.56 and 310,991,245.67 is: 429,121,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,038,992.68 : 706,537,798.56 = 310,991,245.67 : x
  2. Step 2: Convert to fraction form
    512,038,992.68/706,537,798.56 = 310,991,245.67/x
  3. Step 3: Cross multiply
    512,038,992.68x = 706,537,798.56 × 310,991,245.67
  4. Step 4: Simplify right side
    512,038,992.68x = 219,727,070,083,581,248
  5. Step 5: Solve for x
    x = 219,727,070,083,581,248/512,038,992.68
  6. Step 6: Final answer
    x = 429,121,752.89

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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.