Home / 145,159,810.80-217,739,716.20-87,716,943.60

Finding the Fourth Proportional to 145,159,810.80, 217,739,716.20 and 87,716,943.60

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Solution

The fourth proportional to 145,159,810.80, 217,739,716.20 and 87,716,943.60 is: 131,575,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159,810.80 : 217,739,716.20 = 87,716,943.60 : x
  2. Step 2: Convert to fraction form
    145,159,810.80/217,739,716.20 = 87,716,943.60/x
  3. Step 3: Cross multiply
    145,159,810.80x = 217,739,716.20 × 87,716,943.60
  4. Step 4: Simplify right side
    145,159,810.80x = 19,099,462,405,395,404
  5. Step 5: Solve for x
    x = 19,099,462,405,395,404/145,159,810.80
  6. Step 6: Final answer
    x = 131,575,415.40

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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.