Home / 298,701,709.60-448,052,564.40-128,832,397.60

Finding the Fourth Proportional to 298,701,709.60, 448,052,564.40 and 128,832,397.60

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Solution

The fourth proportional to 298,701,709.60, 448,052,564.40 and 128,832,397.60 is: 193,248,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,701,709.60 : 448,052,564.40 = 128,832,397.60 : x
  2. Step 2: Convert to fraction form
    298,701,709.60/448,052,564.40 = 128,832,397.60/x
  3. Step 3: Cross multiply
    298,701,709.60x = 448,052,564.40 × 128,832,397.60
  4. Step 4: Simplify right side
    298,701,709.60x = 57,723,686,122,480,400
  5. Step 5: Solve for x
    x = 57,723,686,122,480,400/298,701,709.60
  6. Step 6: Final answer
    x = 193,248,596.40

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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.