Home / 257,110,851.80-385,666,277.70-191,637,320.60

Finding the Fourth Proportional to 257,110,851.80, 385,666,277.70 and 191,637,320.60

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Solution

The fourth proportional to 257,110,851.80, 385,666,277.70 and 191,637,320.60 is: 287,455,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,110,851.80 : 385,666,277.70 = 191,637,320.60 : x
  2. Step 2: Convert to fraction form
    257,110,851.80/385,666,277.70 = 191,637,320.60/x
  3. Step 3: Cross multiply
    257,110,851.80x = 385,666,277.70 × 191,637,320.60
  4. Step 4: Simplify right side
    257,110,851.80x = 73,908,052,104,203,520
  5. Step 5: Solve for x
    x = 73,908,052,104,203,520/257,110,851.80
  6. Step 6: Final answer
    x = 287,455,980.90

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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.