Home / 500,753,307.84-690,241,378.32-394,733,945.04

Finding the Fourth Proportional to 500,753,307.84, 690,241,378.32 and 394,733,945.04

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Solution

The fourth proportional to 500,753,307.84, 690,241,378.32 and 394,733,945.04 is: 544,103,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,753,307.84 : 690,241,378.32 = 394,733,945.04 : x
  2. Step 2: Convert to fraction form
    500,753,307.84/690,241,378.32 = 394,733,945.04/x
  3. Step 3: Cross multiply
    500,753,307.84x = 690,241,378.32 × 394,733,945.04
  4. Step 4: Simplify right side
    500,753,307.84x = 272,461,702,294,100,768
  5. Step 5: Solve for x
    x = 272,461,702,294,100,768/500,753,307.84
  6. Step 6: Final answer
    x = 544,103,649.50

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Double scale
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1.5x scale

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.