Home / 257,110,850.80-385,666,276.20-191,637,319.60

Finding the Fourth Proportional to 257,110,850.80, 385,666,276.20 and 191,637,319.60

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Solution

The fourth proportional to 257,110,850.80, 385,666,276.20 and 191,637,319.60 is: 287,455,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,110,850.80 : 385,666,276.20 = 191,637,319.60 : x
  2. Step 2: Convert to fraction form
    257,110,850.80/385,666,276.20 = 191,637,319.60/x
  3. Step 3: Cross multiply
    257,110,850.80x = 385,666,276.20 × 191,637,319.60
  4. Step 4: Simplify right side
    257,110,850.80x = 73,908,051,431,081,264
  5. Step 5: Solve for x
    x = 73,908,051,431,081,264/257,110,850.80
  6. Step 6: Final answer
    x = 287,455,979.40

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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.