Home / 749,715,435.72-1,125,298,566.90-361,811,328.12

Finding the Fourth Proportional to 749,715,435.72, 1,125,298,566.90 and 361,811,328.12

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Solution

The fourth proportional to 749,715,435.72, 1,125,298,566.90 and 361,811,328.12 is: 543,067,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,715,435.72 : 1,125,298,566.90 = 361,811,328.12 : x
  2. Step 2: Convert to fraction form
    749,715,435.72/1,125,298,566.90 = 361,811,328.12/x
  3. Step 3: Cross multiply
    749,715,435.72x = 1,125,298,566.90 × 361,811,328.12
  4. Step 4: Simplify right side
    749,715,435.72x = 407,145,769,021,621,696
  5. Step 5: Solve for x
    x = 407,145,769,021,621,696/749,715,435.72
  6. Step 6: Final answer
    x = 543,067,075.35

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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.