Home / 890,139,133.84-1,335,401,520.36-268,302,348.94

Finding the Fourth Proportional to 890,139,133.84, 1,335,401,520.36 and 268,302,348.94

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Solution

The fourth proportional to 890,139,133.84, 1,335,401,520.36 and 268,302,348.94 is: 402,511,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,139,133.84 : 1,335,401,520.36 = 268,302,348.94 : x
  2. Step 2: Convert to fraction form
    890,139,133.84/1,335,401,520.36 = 268,302,348.94/x
  3. Step 3: Cross multiply
    890,139,133.84x = 1,335,401,520.36 × 268,302,348.94
  4. Step 4: Simplify right side
    890,139,133.84x = 358,291,364,690,635,200
  5. Step 5: Solve for x
    x = 358,291,364,690,635,200/890,139,133.84
  6. Step 6: Final answer
    x = 402,511,642.36

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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.