Home / 359,530,778,730.96-538,545,702,102.78-215,653,517,209.70

Finding the Fourth Proportional to 359,530,778,730.96, 538,545,702,102.78 and 215,653,517,209.70

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Solution

The fourth proportional to 359,530,778,730.96, 538,545,702,102.78 and 215,653,517,209.70 is: 323,030,131,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,530,778,730.96 : 538,545,702,102.78 = 215,653,517,209.70 : x
  2. Step 2: Convert to fraction form
    359,530,778,730.96/538,545,702,102.78 = 215,653,517,209.70/x
  3. Step 3: Cross multiply
    359,530,778,730.96x = 538,545,702,102.78 × 215,653,517,209.70
  4. Step 4: Simplify right side
    359,530,778,730.96x = 116,139,274,836,631,841,931,264
  5. Step 5: Solve for x
    x = 116,139,274,836,631,841,931,264/359,530,778,730.96
  6. Step 6: Final answer
    x = 323,030,131,791.69

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1.5x scale

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.