Home / 387,235,485.60-580,853,228.40-299,559,530.40

Finding the Fourth Proportional to 387,235,485.60, 580,853,228.40 and 299,559,530.40

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Solution

The fourth proportional to 387,235,485.60, 580,853,228.40 and 299,559,530.40 is: 449,339,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,235,485.60 : 580,853,228.40 = 299,559,530.40 : x
  2. Step 2: Convert to fraction form
    387,235,485.60/580,853,228.40 = 299,559,530.40/x
  3. Step 3: Cross multiply
    387,235,485.60x = 580,853,228.40 × 299,559,530.40
  4. Step 4: Simplify right side
    387,235,485.60x = 174,000,120,330,827,936
  5. Step 5: Solve for x
    x = 174,000,120,330,827,936/387,235,485.60
  6. Step 6: Final answer
    x = 449,339,295.60

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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.