Home / 402,489,529,425.60-603,221,559,861.60-213,925,759,569.60

Finding the Fourth Proportional to 402,489,529,425.60, 603,221,559,861.60 and 213,925,759,569.60

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Solution

The fourth proportional to 402,489,529,425.60, 603,221,559,861.60 and 213,925,759,569.60 is: 320,616,117,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,489,529,425.60 : 603,221,559,861.60 = 213,925,759,569.60 : x
  2. Step 2: Convert to fraction form
    402,489,529,425.60/603,221,559,861.60 = 213,925,759,569.60/x
  3. Step 3: Cross multiply
    402,489,529,425.60x = 603,221,559,861.60 × 213,925,759,569.60
  4. Step 4: Simplify right side
    402,489,529,425.60x = 129,044,630,382,151,706,083,328
  5. Step 5: Solve for x
    x = 129,044,630,382,151,706,083,328/402,489,529,425.60
  6. Step 6: Final answer
    x = 320,616,117,806.38

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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.