Home / 890,534,981.89-1,228,799,684.23-509,051,570.95

Finding the Fourth Proportional to 890,534,981.89, 1,228,799,684.23 and 509,051,570.95

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Solution

The fourth proportional to 890,534,981.89, 1,228,799,684.23 and 509,051,570.95 is: 702,411,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,534,981.89 : 1,228,799,684.23 = 509,051,570.95 : x
  2. Step 2: Convert to fraction form
    890,534,981.89/1,228,799,684.23 = 509,051,570.95/x
  3. Step 3: Cross multiply
    890,534,981.89x = 1,228,799,684.23 × 509,051,570.95
  4. Step 4: Simplify right side
    890,534,981.89x = 625,522,409,640,145,408
  5. Step 5: Solve for x
    x = 625,522,409,640,145,408/890,534,981.89
  6. Step 6: Final answer
    x = 702,411,946.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.