Home / 620,472,085.44-856,251,269.04-342,018,259.12

Finding the Fourth Proportional to 620,472,085.44, 856,251,269.04 and 342,018,259.12

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Solution

The fourth proportional to 620,472,085.44, 856,251,269.04 and 342,018,259.12 is: 471,985,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,472,085.44 : 856,251,269.04 = 342,018,259.12 : x
  2. Step 2: Convert to fraction form
    620,472,085.44/856,251,269.04 = 342,018,259.12/x
  3. Step 3: Cross multiply
    620,472,085.44x = 856,251,269.04 × 342,018,259.12
  4. Step 4: Simplify right side
    620,472,085.44x = 292,853,568,406,351,552
  5. Step 5: Solve for x
    x = 292,853,568,406,351,552/620,472,085.44
  6. Step 6: Final answer
    x = 471,985,082.45

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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.