Home / 758,268,211.80-1,137,402,317.70-431,750,861.40

Finding the Fourth Proportional to 758,268,211.80, 1,137,402,317.70 and 431,750,861.40

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Solution

The fourth proportional to 758,268,211.80, 1,137,402,317.70 and 431,750,861.40 is: 647,626,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,268,211.80 : 1,137,402,317.70 = 431,750,861.40 : x
  2. Step 2: Convert to fraction form
    758,268,211.80/1,137,402,317.70 = 431,750,861.40/x
  3. Step 3: Cross multiply
    758,268,211.80x = 1,137,402,317.70 × 431,750,861.40
  4. Step 4: Simplify right side
    758,268,211.80x = 491,074,430,425,331,456
  5. Step 5: Solve for x
    x = 491,074,430,425,331,456/758,268,211.80
  6. Step 6: Final answer
    x = 647,626,292.10

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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.