Home / 472,393,886.20-708,282,899.70-424,020,945.40

Finding the Fourth Proportional to 472,393,886.20, 708,282,899.70 and 424,020,945.40

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Solution

The fourth proportional to 472,393,886.20, 708,282,899.70 and 424,020,945.40 is: 635,755,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,886.20 : 708,282,899.70 = 424,020,945.40 : x
  2. Step 2: Convert to fraction form
    472,393,886.20/708,282,899.70 = 424,020,945.40/x
  3. Step 3: Cross multiply
    472,393,886.20x = 708,282,899.70 × 424,020,945.40
  4. Step 4: Simplify right side
    472,393,886.20x = 300,326,784,741,447,360
  5. Step 5: Solve for x
    x = 300,326,784,741,447,360/472,393,886.20
  6. Step 6: Final answer
    x = 635,755,020.37

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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.