Home / 399,405,002.30-599,173,858.65-157,075,811.90

Finding the Fourth Proportional to 399,405,002.30, 599,173,858.65 and 157,075,811.90

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Solution

The fourth proportional to 399,405,002.30, 599,173,858.65 and 157,075,811.90 is: 235,639,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,405,002.30 : 599,173,858.65 = 157,075,811.90 : x
  2. Step 2: Convert to fraction form
    399,405,002.30/599,173,858.65 = 157,075,811.90/x
  3. Step 3: Cross multiply
    399,405,002.30x = 599,173,858.65 × 157,075,811.90
  4. Step 4: Simplify right side
    399,405,002.30x = 94,115,720,316,704,592
  5. Step 5: Solve for x
    x = 94,115,720,316,704,592/399,405,002.30
  6. Step 6: Final answer
    x = 235,639,813.66

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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.