Home / 399,404,975.30-599,173,818.15-157,075,784.90

Finding the Fourth Proportional to 399,404,975.30, 599,173,818.15 and 157,075,784.90

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Solution

The fourth proportional to 399,404,975.30, 599,173,818.15 and 157,075,784.90 is: 235,639,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,404,975.30 : 599,173,818.15 = 157,075,784.90 : x
  2. Step 2: Convert to fraction form
    399,404,975.30/599,173,818.15 = 157,075,784.90/x
  3. Step 3: Cross multiply
    399,404,975.30x = 599,173,818.15 × 157,075,784.90
  4. Step 4: Simplify right side
    399,404,975.30x = 94,115,697,777,441,120
  5. Step 5: Solve for x
    x = 94,115,697,777,441,120/399,404,975.30
  6. Step 6: Final answer
    x = 235,639,773.16

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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.