Home / 920,440,969.53-1,270,200,124.31-502,753,129.53

Finding the Fourth Proportional to 920,440,969.53, 1,270,200,124.31 and 502,753,129.53

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Solution

The fourth proportional to 920,440,969.53, 1,270,200,124.31 and 502,753,129.53 is: 693,794,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,440,969.53 : 1,270,200,124.31 = 502,753,129.53 : x
  2. Step 2: Convert to fraction form
    920,440,969.53/1,270,200,124.31 = 502,753,129.53/x
  3. Step 3: Cross multiply
    920,440,969.53x = 1,270,200,124.31 × 502,753,129.53
  4. Step 4: Simplify right side
    920,440,969.53x = 638,597,087,626,247,424
  5. Step 5: Solve for x
    x = 638,597,087,626,247,424/920,440,969.53
  6. Step 6: Final answer
    x = 693,794,723.14

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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.