Home / 399,404,994.80-599,173,847.40-157,075,804.40

Finding the Fourth Proportional to 399,404,994.80, 599,173,847.40 and 157,075,804.40

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Solution

The fourth proportional to 399,404,994.80, 599,173,847.40 and 157,075,804.40 is: 235,639,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,404,994.80 : 599,173,847.40 = 157,075,804.40 : x
  2. Step 2: Convert to fraction form
    399,404,994.80/599,173,847.40 = 157,075,804.40/x
  3. Step 3: Cross multiply
    399,404,994.80x = 599,173,847.40 × 157,075,804.40
  4. Step 4: Simplify right side
    399,404,994.80x = 94,115,714,055,797,856
  5. Step 5: Solve for x
    x = 94,115,714,055,797,856/399,404,994.80
  6. Step 6: Final answer
    x = 235,639,802.41

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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.